Mario isn't a QB whisperer by any means but, Anthony Brown (a poor man's Ward IMO) won 10 games and had the best season of his college career the one year he was at Oregon. Guy is still in the NFL too.
I think we'll be ok.
I mean, let's be real, if they don't land a top WR from the portal you'll probably be right back here saying that no WR worth a **** wants to play in Mario's offense