I'm of the opinion that had Pogba played for another club this season, he could have, at the very least, put in some good cameos as Smalling had done. I think we have tried very hard to involve Pogba more but he has been really unlucky with the games in which he was on the bench. If things had gone to plan then he could have had 5 or more appearances now in the league. Unfortunately it didn't work out as the first team wasn't getting the job done.
Although Pogba wasn't involved on the tour, I remember Fergie mentioning him in particular as one that he wanted to take but the numbers weren't right. He was involved in two friendlies once we had returned however. All in all, he has been unfortunate when you think about it.
He could and probably should. As has been said though, he may have better offers from elsewhere. If we are offering Pogba £20k a week and his agent is now entitled to 30%, that leaves Pogba on less than £14k. Obviously it's his fault for hiring the agent, though he may not have foreseen that the club would be unwilling to cover agent fees, which could be why he has been haggling for more to bring his own wage up. If his recently replaced agents are also entitled to a slice then you can see why, financially, our offer may not be financially viable to him.
There's too many if's and but's for us to guess the situation, but I can understand why this could be a tricky situation as Fergie has said himself.