I wasn't including the QB. Smith-Schuster, James Washington and Dionte Johnson are as good as any WR group in the league, McDonald is an above average TE and Conner is an excellent RB. I would take those guys over the Bills skill position players any day and I don't think it's even close. There is a reason Ducky Hodges has been successful, and it's not the NFL-level coaching he received at Stamford. If JA had a similar group of skill position players, he'd be lighting up the scoreboard.
Smith-Schuster has been hurt, but he's proven he's a really good WR. Same with Connor at RB. James Washington is emerging as a serious downfield threat, and Dionte Johnson is one of the two or three best rookie receivers in a very good WR class. When Smith-Schuster is healthy (I know he's out this weekend), I can't think of a WR group in the league that I'd rather have.