These are amongst the main gripes I have with the 1-player modes, and they are gamebreakers.
The instanteous reactions, etc of cpu players is worse than ever. Along with the rest of the cpu's near error free play, I can hardly bare to look it at, let alone play it.
It's pointless going a defensive player in BAP as your team will barely score a single goal all season. You either have to score them all yourself, or set them up on a plate for a team-mate to tap home, whilst praying he doesn't deliberately miscontrol it or sky it over the bar.
In 10 and WC, I can recall only one time where I was in a team with a useful attacking AI team-mate and that was Rooney, who would occassionally score a few all by himself. With nearly every other team, it was just a succession of 0-0s, unless I scored (or we conceded).
There a good game somewhere in that engine. I wish they'd release an optional "simulation" patch that revamps the arcade version they've put on general release.