Coman is talented, but selling him in this transfer window would be good TBH. I've seen A LOT of wonderkids at 19 who turned out to be average at best.
We got him for free and he'll be a bench warmer most likely, we sell him for 18-20 milion (if valuation in reports are true). We use the money to up our offer for Draxler, or maybe better Isco/Gotze.
It's a win (for Juve) -lose (for Coman) really. We need an AM and he wants regular football, which is not happening at Bayern.