You can't just offer a swap deal for someone like Varane that's a ridiculous offer. Pogba has an abundance of commercial value, he's also someone who can attract other top class players to the club when we are in clear need of quality.
If we had a footballing identity like when Sir Alex was at the helm, then losing Pogba would be viable because you can integrate others into a system or get different types of players to diversify the midfield position.
The problem we have is we don't play well as a team, the football is lethargic and disjointed so losing Pogba when we are so reliant on his intuitive contribution would be catastrophic. Looking at what Klopp has done with Coutinho, because he has a philosophy he's used the same system, implemented a different player (Mane) but with effective coaching he's become better than Coutinho when he was at Lpool.
Conclusively, they have become a better team overall, the same cannot be said for us. We need to bring balance to the midfield and have players that naturally compliment each other, if we had one quality player either side of Pogba he will have more space to exploit because the opposition cannot overcompensate marking him.
You mark Pogba and Herrera / Matic become passengers. Yet we've got people on her willing to give up an organ for Ander to stay
. It's not a coincidence we have struggled in games due to Pogba loss of form, we are too reliant on his influence.