Lots of guys can be 7 on 7 heros and not be able to play, so take all of that with a grain of salt.
The key for Sams will be development/ability to hit intermediate and deep throws in addition to what we already know he can do running the football. The key for Waters will be as a legitimate threat running the ball, and that is if the winter ball 7 on 7 tales are indeed true.
Either way, we all need to wait until they both get the pads on and get to really compete in spring practice.