CPJ knows already if he thinks Leggett will be a good this year. He also will be getting a look at the QW soon as well, followed by the others this summer. It makes no sense to me that he would change TB's position unless he sees a weakness at b-back so large (or believes Jordan is already on a par with TB) that he feels forced to possibly lose access to an excellent backup quarterback that could be needed at any moment.
IMHO this is a decision that simply doesn't need to be made yet, if at all and barring some bizarre twist, likely wouldn't occur till summer camp.