This post echoes my thoughts too.
I was not excited by the appointment at all, but after listening to Forest fans and hearing the man himself, I thought I could get on board for 10-15 games and started to believe he might be the type of "backs against the wall" Manager that may be needed for a relegation battle.
However, I have been disappointed with him so far. Not as triggered and OTT as some in here, but enough to start thinking he isn't going to last much longer if he continues with these team selections and substitutions. He has actually cobbled together a pretty decent squad now, with some players from last season performing OK so far, and also the new signings looking fairly decent too. So much so, it feels like he should be getting more from them, and he can't do that if he is picking the same players and setting us up with such a negative mindset.
The 3 DCM's is a woeful approach, even away from home, and to give credit to the players, they have done their best to make it work. However, I think long-term if he persists (looking likely!) then this will completely stifle us and we will struggle to win games. The decision to bring on Coady as yet another CB, was another worrying insight to his way of thinking.
My big hope, is that he stumbles across a formula, whether in a cup game or enforced by injury, that pushes him to move away from this ultra conservative style, and into a system that gives us more attacking threat and less of this hang on for dear life strategy. As each game passes though, I am not seeing any signs of him being aware of our issues. Worrying, as this place is becoming increasingly toxic towards him, and toxicity will not help in a fight for survival.