I think we could get a swap deal with Draxler but that would require us to be ruthless, something we are not.

Draxler is out of favour at PSG and they apparently value him at £30m. Sanchez with 6 months left is worth around £30m.
He has been dogshit but let's not kid ourselves, he's world class. Plus he is eligible to play in the champions league so for a club obsessed with winning the champions league, it would make sense to go for him.