Sure. The more I read about Johnston, the more I wonder about his relatively high standing. Although he didn't preside over any major disasters, I think his risk-averse mindset repeatedly cost the South opportunities. He did very little to arrest McClellan's advance up the Peninsula until it was almost too late. When Davis put him in charge of the Western theater to achieve coordination among the different armies, he pretty much did nothing except complain. Davis had to order him to Mississippi to try to retrieve the Vicksburg situation, and again his efforts were minimal at best. And in 1864 he was repeatedly outmaneuvered by Sherman across some of the best defensive terrain a commander could hope for. The only thing that really slowed Sherman down was the rain.
Admittedly, these were all difficult assignments, and maybe the final result was pre-ordained. But his lack of effort or taking risks pretty much sealed the deal.