re: Can someone explain why Steele is supposedly super duper bad?

from a Clemson site in 2012
"We have heard several disturbing things about Steele's possible psychological breakdown during the Orange Bowl game. Multiple sources have said that he was calling plays from his days with the Panthers, which aren't in the Clemson playbook, and as such the players were totally confused. It reportedly happened during the Auburn game as well. I do not know if that is true, and frankly think it a bit farfetched, but I do know that Steele has a reputation for being a nervous wreck on gamedays. I'm sure most of you recall that he passed out on the sidelines during a game, and I have heard many times that he requires an IV for fluids because he's such a wreck and won't eat at all on gameday. Hopefully he can get these things corrected for his own health.

For whatever reason, his inability to simplify his scheme for the players this year became the primary problem with Clemson's defense, which had been Top 25 the last two seasons. We do not believe Clemson has been as hampered by poor LB talent as many folks believe. I think even good players look like crap when they're too confused and haven't worked on fundamentals enough. We wish him luck in the future because we do think he has been a good coach over his career."

And what coach has ever won anything at Clemson besides Swinney?