Manchester United:
Rejects try desperately to break into the team (all of them), cry (famously Roy Keane, but likely all of them) or go nuts (Tevez) and then either get sold (Berbatov, Gibson, Obertan etc) or request to be sold becasue they really really want to be playing first team football (Neville, O'shea, etc).
Arsenal
Denilson
Diaby
Almunia
Arshavin.
Oh dear
If these mugs ever do have to play they are shit. But its OK becasue WEnger blows smoke up their arse and tells them they did really well apart from those moments when they shipped three goals. Their possession stats were reaelly good or whatever. And dont worry about those set pieces we never attack or defend. Thats not our thing anyway.
Not only does Wenger have no idea how to motivate these players, any genuine competitors he happens to have get disillusioned at the free ride these guys get and the club's inability to reward real quality. So its easy for them to make eyes at their belowved city/barca/utd and yes, chelsea.
Wenger is as adept at de-motivating stars as Fergie is adept at motivating cloggers.
It wasnt always like that