Admittedly I'm biased having seen taylor all through college but I was thinking the same thing last night. I can't see us keeping 3 RB's who don't play ST and with Ellington, Johnson and Johnson that would be the case.
I'm still not sure what it is I'm missing with Hughes. Again last night gets a carry from the upback position, it's actually fairly well blocked, he comes in completely upright, sheds an ankle tackle attempt and then finds the only defender not blocked and runs right into him, think he gained a yard.
With Taylor they either don't like him and aren't playing him much for that reason, or they already know what they have with him so they're playing other guys? Which is the truth I have no idea.