Training sessions per day?

[Jeeves]

The bar itself has no impact on the upcoming match. It is a feature in the game that aims to inform you, the manаger of the club, as to what can be improved in regards to the upcoming match.

A quick example is the message: "Some set-piece takers aren't set in your squad"
Whenever my players get too old, for what I currently need - subjectively, I would sell them off on auction or just sack 'em. Well some of these players are set up to execute penalties, corners, etc. If I haven't set these before the match, the game will automatically decide who to execute these events, but it's obviously better if I myself decide this by allocating a man for each job. It's common sense. I might have noticed that Player H is better at corners than Player B so I'll put Player H as the corner kick guy.
Even if I leave the captain slot empty it will prompt the Prep bar to notify you that there are missing set-piece takers. (Before someone asks the question about Captains - It's there for realism. There's no statistical gain from having a Captain.). But this will slightly nudge the Prep bar down as it looks at the overall picture and not the details. But hey, that's why your Club has a Manager.

[Perry Sih]

The bar itself has no impact on the upcoming match. It is a feature in the game that aims to inform you, the manаger of the club, as to what can be improved in regards to the upcoming match.

Well, that's the kind of definite answer that is the useful kind of answer. Thank you.