That was pre salary cap. I can’t think of a team in recent history that has been lead to the SB by their receiver(s) It’s more important to pay your QB, O-Line and defence. Yes you need capable receivers to move the ball but I don’t think you ‘need’ superstars out wide to be successful. Steelers should be solid all over the field next year but will be less explosive on offence. I’m not saying that’s a guarantee of success but give them 5-6 games next year and they’ll have figured out how to move the ball and win games imo.