Tampa Bay knew it was only a matter of time before opponents started stacking the line of scrimmage in hopes of slowing Carnell Williams.

Visiting Detroit was successful at it, but containing the rookie also left it vulnerable to other playmakers in an improved offense that has helped the resurgent Buccaneers to their first 4-0 start since 1997.

With Williams slowed by a sore hamstring, Joey Galloway and Michael Pittman took up the slack and Tampa Bay's defense stopped a march deep in its territory to hang on.

Galloway scored on an 80-yard reception and Brian Griese also threw a 41-yard touchdown pass to Pittman, a starter the last three seasons whose role in the offense has diminished since the arrival of Williams.

Williams, the first player in NFL history to begin his career with three consecutive 100-yard rushing games, was held to 13 yards on 11 carries. He left the game late in the third quarter and did not return.

"Everything is okay. He had a mild hamstring," Bucs Coach Jon Gruden said, noting that Williams also was limited in practice during the week because of a foot sprain. "And the fact that Pittman was playing pretty well . . . we chose to go another route today."

Lions tight end Marcus Pollard catches a pass in the closing seconds that was initially ruled the go-ahead touchdown, but was overruled on replay.