What was with the 5 wide look?

[Catch-22]

Just wondering, because I noticed several times we lined up in an empty backfield with JJ/MB and Witten lined up wide. Everytime I remember, except for that long pass to JJ, we motioned the RB to the backfield or next to the TE and then they ran a little dump off route.

Was that to try and take pressure off of Bledsoe? I would think if the defense saw an empty backfield they would be licking their chops to blitz pressure right up the middle.