No I stand by what I said, or at least my right to have that opinion. He goes into games with a strategy for how the team will play, which is of course informed by his experience working with the players and his many years of experience in the game (experience I lack obviously). Sometimes, this strategy works very well and we can dominate games or manage to keep it tight and fend off stronger opponents.. In situations where it isn't working, he rarely changes anything decisively other than by doing the obvious - chucking on a striker, etc. There is a difference between strategy (how he sets the team up and how he tells them to play before the match) and tactical decisions during the match, which he is slow to implement.
In regards to your point
LSF , if you go to the cinema it is usually apparent if the filmmaker has little talent. Similarly at a concert, if someone is singing off-key you are able to hear it. I don't think football management should be cordoned off beyond mortal understanding. Why talk about it at all if we just have to trust they know what they are doing?
Perhaps inept was too strong; I think Clough has his strengths as a manager but tactical decisions based on individual games is not one of them.