Raiola is making the situation untenable so Pogba can leave even if the offer for him is very sub-par. That's pretty much clear here. He wants out, and he'll do anything to make that happen. Pogba is allowing it to happen and is guilty by association.
This may sound counter-intuitive, but the club shouldn't react to this right now - that's what Raiola and co want. Instead we should lean and act upon this in the future. For now, I think we're pretty clear on what our policy is when a player is unhappy and is affecting squad unity, we let him go. But by all accounts, Pogba plays ball and is very professional influence in the dressing room. In that case, we have no issue at all - we wait for him to be back from injury and then give him a chance to show what he can do. It should be business as usual. The sooner he's back, the better. If he doesn't play well after coming back - we could deal with it then.
As for the summer, same deal. If he hands in a transfer request and we get an offer that matches valuation, we sell him. If we don't, then he stays. The key takeaway is to try and not have Raiola players on our books in the future. Raiola aims to inflame fans, board and club emotionally because it's in his interest, but that's not in ours and we should keep that in mind before we make any decisions.