Would be absolutely stunned if Khan gave up this much. Beyond stunned actually.
I'll give you Jefferson, Hill, Chase, Lamb, St. Brown, Lamb, Adams, maybe Wilson or Evans. I'd have a hard time putting him behind another 5-10 receivers.
Pickens isn't due for a big contract yet and if he wants it a year early, he'll hold out regardless of Aiyuk's contract. There could be an argument some of the other veterans may be unhappy a new guy comes in and gets paid, but if he helps them win and they can still get a contract, I don't think they'd care much either.
I absolutely think Brandon Aiyuk could take the team from competing for a Wild Card spot to competing for the AFC North. Sure there are questions at QB and with the OL, but do you sit back and waste yet another year of having TJ Watt on defense or go out and get another player who can help this team win now and in the future. It's been 7 years since they've won a playoff game, I am more than ready for this streak to end.
I'm still curious where you rank Aiyuk as a receiver? Top 10, top 20?