The Bucs have signed fullback Zack Crockett.  The 34-year old is a big, power back at 6′2″, 240 pounds and he will likely get a lot of goal line and short yardage carries for the Bucs.  He played in 16 games (9 starts) last season for the Raiders and he carried the football 39 times for 163 yards (4.2 ypc) and he also caught 10 passes for 53 yards (5.3 avg).  Crockett has played in 174 games (59 starts) in his NFL career and he has carried the ball 509 times for 1,701 yards (3.3 ypc) with 36 TD runs.  He also has caught 96 passes for 680 yards (7.1 avg) with 2 TD grabs.  With the signing of Crockett the Bucs plan to move B.J. Askew to halfback due to injuries.