Welcome to ASFN, Lauraw.
Doucet was well regarded coming out of LSU. His write-ups were suggestive of Boldin-like talent (i.e. tough; runs well after the catch etc.)
I believe he missed some early camp and reg season time due, in part to nagging injury, and this (plus the log-jam at WR) probably prevented him from progressing farther.
You can see the potential, but the two things I'd like to see him improve on are (a) becoming bigger and tougher (he got pushed around in his routes as a rookie) and (b) a little bit more consistency catching the football.
But if he can do that (just as Breaston did -adding heft and strength during the offseason a year ago) he could become something special.