For one, the Steelers now have a proven slot receiver in the fold as well as a punt returner. This also signals that Rogers has recovered to an acceptable level after his ACL tear against the Jacksonville Jaguars in the playoffs. The Rogers signing will help in multiple ways.
Rogers gives the Steelers depth at the Receiver Position
Eli Rogers can come in an be depth for the Steelers at the receiver position. Behind Antonio Brown and Juju Smith-Schuster, the Steelers do not have a lot of experienced depth. James Washington can work himself into the #3 receiver role, but it may take some time with him being a rookie.