This is according to Jefferson Davis in his 1881 The Rise and Fall of the Confederate Government.
Hood's plan:
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... The plan of operations which I had discussed with General Hood while at his headquarters was fully explained to General Beauregard at Augusta, and by him cordially approved. It comprised the occupation of a strong position on the enemy's line of communication by the railroad between Atlanta and Chattanooga, the capture of his depots of supplies and the small garrisons left to guard them. If this, as was probable, should cause Sherman to move to attack us in position, in that case, if the tone of the troops justified it, a battle should be joined ; otherwise, he should retreat toward Gadsden, where supplies would be collected, and, should Sherman follow him so far, then there, on the dividing line of the States of Georgia and Alabama, the largest practicable number of militia and home-guards of both States would be assembled as an auxiliary
force, and there a final stand should be made for a decisive battle. If victorious, as under the circumstances it was hoped we should be, the enemy could not retreat through the wasted country behind him, and must surrender or disperse. If Sherman should not pursue our retiring army to Gadsden, but return to Atlanta to march toward the seacoast, he was to be pursued, and, by our superiority in cavalry, to be prevented from foraging on the country, which, according to our information as to his supplies on hand at Atlanta, and as to his inadequate means of transportation, would be indispensable for the support of his troops. Should Sherman, contrary to that information, have supplies and transportation sufficient to enable him to march across the country, and he should start toward the seacoast, the militia, the local troops, and others who could be employed, should obstruct the roads and fords in his front by felling trees, and, by burning bridges and other available means, delay his progress until his provisions should be consumed and absolute want should deplete if not disintegrate his army. ...
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Note that Hood never crossed at Gunter's Landing; that was the original goal. Davis text has the crossing point wrong.
Note that Hood willfully abandoned this plan, moving further and further West until he was so far from Atlanta and Sherman that he could not execute the plan as he had described it.
Davis' comments on how Hood actually acted:
=====
...
To the arguments offered to show that our army could not, after it had reached the Tennessee River, have effectually pursued Sherman in his march through southern Georgia, it is only needful to reply that the -physical difficulties set forth would not have existed, had our army commenced the pursuit from Gadsden.
To make the movement into Tennessee a success, even so far as to recover that country, it was necessary that it should be executed so promptly as to anticipate the concentration of the enemy's forces, but unforeseen and unavoidable delays occurred, which gave fall time for preparation. After having overcome many vexatious detentions, Hood on the 20th of November completed his crossing of the Tennessee River at Gunter's Landing, and moved forward into Tennessee on the route to Nashville, whither Sherman had sent General Thomas for the protection of his depots and communications against an apprehended attack by cavalry under General Forrest.
Most unwilling to criticise the conduct of that very gallant and faithful soldier who, battle-scarred and mutilated, survived the war, and whose recent death our country has so much deplored, I must say after the event, as I did before it, that I consider this movement into Tennessee ill-advised.
Thomas having been sufficiently reenforced in Tennessee to enable him to hold Hood in check, and Sherman relieved from the necessity of defending himself against an active army, and of protecting a long line of railroad communication with a fortified base in his rear, resolved upon his march to the sea, abandoning Atlanta, after having first utterly destroyed that city by fire. ...
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In short, Davis thinks Hood blew it. Might be a bit of CYA after the war -- but then there is also this:
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RICHMOND, November 30, 1864.
General BEAUREGARD:
(Care of Col. W. M. Browne, Augusta, Ga.)
Yours of the 24th received. It is probable that the enemy, if short of supplies, may move directly for the coast. When that is made manifest you will be able to concentrate your forces upon the one object, and, I hope, if you cannot defeat his attempt, that you may reduce his army to such condition as to be ineffective for further operations. Until Hood reaches the country proper of the enemy he can scarcely change the plans for Sherman's or Grant's campaigns. They would, I think, regard the occupation of Tennessee and Kentucky as of minor importance.
JEFF'S DAVIS.
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Even as the campaign was in progress, Davis understands that moving into TN is a mistake. Hood is the one who cannot figure it out.
Tim
Hood's plan:
=====
... The plan of operations which I had discussed with General Hood while at his headquarters was fully explained to General Beauregard at Augusta, and by him cordially approved. It comprised the occupation of a strong position on the enemy's line of communication by the railroad between Atlanta and Chattanooga, the capture of his depots of supplies and the small garrisons left to guard them. If this, as was probable, should cause Sherman to move to attack us in position, in that case, if the tone of the troops justified it, a battle should be joined ; otherwise, he should retreat toward Gadsden, where supplies would be collected, and, should Sherman follow him so far, then there, on the dividing line of the States of Georgia and Alabama, the largest practicable number of militia and home-guards of both States would be assembled as an auxiliary
force, and there a final stand should be made for a decisive battle. If victorious, as under the circumstances it was hoped we should be, the enemy could not retreat through the wasted country behind him, and must surrender or disperse. If Sherman should not pursue our retiring army to Gadsden, but return to Atlanta to march toward the seacoast, he was to be pursued, and, by our superiority in cavalry, to be prevented from foraging on the country, which, according to our information as to his supplies on hand at Atlanta, and as to his inadequate means of transportation, would be indispensable for the support of his troops. Should Sherman, contrary to that information, have supplies and transportation sufficient to enable him to march across the country, and he should start toward the seacoast, the militia, the local troops, and others who could be employed, should obstruct the roads and fords in his front by felling trees, and, by burning bridges and other available means, delay his progress until his provisions should be consumed and absolute want should deplete if not disintegrate his army. ...
=====
Note that Hood never crossed at Gunter's Landing; that was the original goal. Davis text has the crossing point wrong.
Note that Hood willfully abandoned this plan, moving further and further West until he was so far from Atlanta and Sherman that he could not execute the plan as he had described it.
Davis' comments on how Hood actually acted:
=====
...
To the arguments offered to show that our army could not, after it had reached the Tennessee River, have effectually pursued Sherman in his march through southern Georgia, it is only needful to reply that the -physical difficulties set forth would not have existed, had our army commenced the pursuit from Gadsden.
To make the movement into Tennessee a success, even so far as to recover that country, it was necessary that it should be executed so promptly as to anticipate the concentration of the enemy's forces, but unforeseen and unavoidable delays occurred, which gave fall time for preparation. After having overcome many vexatious detentions, Hood on the 20th of November completed his crossing of the Tennessee River at Gunter's Landing, and moved forward into Tennessee on the route to Nashville, whither Sherman had sent General Thomas for the protection of his depots and communications against an apprehended attack by cavalry under General Forrest.
Most unwilling to criticise the conduct of that very gallant and faithful soldier who, battle-scarred and mutilated, survived the war, and whose recent death our country has so much deplored, I must say after the event, as I did before it, that I consider this movement into Tennessee ill-advised.
Thomas having been sufficiently reenforced in Tennessee to enable him to hold Hood in check, and Sherman relieved from the necessity of defending himself against an active army, and of protecting a long line of railroad communication with a fortified base in his rear, resolved upon his march to the sea, abandoning Atlanta, after having first utterly destroyed that city by fire. ...
=====
In short, Davis thinks Hood blew it. Might be a bit of CYA after the war -- but then there is also this:
=====
RICHMOND, November 30, 1864.
General BEAUREGARD:
(Care of Col. W. M. Browne, Augusta, Ga.)
Yours of the 24th received. It is probable that the enemy, if short of supplies, may move directly for the coast. When that is made manifest you will be able to concentrate your forces upon the one object, and, I hope, if you cannot defeat his attempt, that you may reduce his army to such condition as to be ineffective for further operations. Until Hood reaches the country proper of the enemy he can scarcely change the plans for Sherman's or Grant's campaigns. They would, I think, regard the occupation of Tennessee and Kentucky as of minor importance.
JEFF'S DAVIS.
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Even as the campaign was in progress, Davis understands that moving into TN is a mistake. Hood is the one who cannot figure it out.
Tim