Steelers need a #1 receiver...who?
Antonio Brown is not a #1 receiver. He's a good #2.
Mike Wallace is not a #1 receiver.
And since Ben isn't a quick read/react quarterback he's going to need a #1 receiver that
1) has decent size
2) runs good routes
3) catches the ball with his hands consistently
4) can BLOCK occassionally
5) has above average speed
Blocking isn't a requirement , but the other 4 things are. So who can the Steelers get to be their Anquan Boldin, or their Santonio Holmes? Ben needs a #1 receiver.
Rebuilding the defense. It's going to be a long process.