yeah, he's got to push out a Toby IMO
Here's the thing though. Andy Tanner would be useful, but he wouldn't necessarily see the field before the other five guys. So, if he's just sitting on the bench, wouldn't you rather have Roby on the team who's greatest asset is special teams? I hate not having Tanner, but it's still really nice to have a great special teamer with Roby.
It all comes down to numbers and how you allocate your roster spots. A 6th WR who sits all year or a 6th WR who is also a great special team guy. You get more value with Roby than Tanner, even though Tanner is probably the better receiver.
I hope he proves me wrong, though. Tanner is one those players you want to see break into the league.