Brad Sowell moving to TE? And Mizzell to WR?

Blocking TE, w/the ability to catch a bit. 

Mizzel won't make the team at RB or WR, w/the change could they put him on PS?

I think the move indicates both are at risk for not making the team.

In Sowell's case we have the younger OL guys brought on recently and maybe he would be on the outside looking in at OL.  Also he could be a better receiver than we all think (or at least better than I think).  Not that he wouldn't be primarily a blocker.  But enough of a receiver so that if a DC ignores him as a receiver he could make them pay for it.

With Mizzell, I was looking at all the offseason moves at RB and I was already convinced he would not make it through PS.  So IMO they are giving him a chance to show something before being released.