Bentley doesn't have the pace to get in behind and join up with two ickle strikers for passing and shooting in the box, that was never his game. He's a beckham carbon copy, can't go round people, no pace, but pass to him in the right place and he's got a great delivery into the box. There was just no one to cross to last year so you can see him being used a lot more as they ask a very different role of him. If the right back can play well like Neville did, run the overlap and create the space to get Bentley the ball in a dangerous area and they could do well.
With Lennon's utter turd delivery he suits cutting in and getting close enough for a shot/short pass so would work better on the left and coming into the box on his right foot than vice versa.
Bent is actually good and scored quite a lot, he's worth over £10mil with other strikers moving for similar amounts, Bentley didn't get games let alone play well last year, no way you could recoup that cash(barring Pompie actually getting their billionaire finally and being desparate for players).