PewterReport.com was the first to report when Crowell, 26, visited Tampa Bay as a free agent last year, but the Bucs weren't convinced that his knee, which has been plagued by the injury bug in recent years, was 100 percent, so they passed him and he eventually rejoined the Detroit Lions.
The 6-foot-3, 216-pound receiver had a breakout year in 1999, where he hauled in a career-high 81 passes for 1,338 yards and scored seven touchdowns.
But Crowell, a 1998 second round pick out of the University of Virginia, never came close to matching his '99 production due to his battle with knee injuries. He's played in just 23 regular season games and caught 78 passes for 920 yards and scored seven touchdowns over the last three seasons.
While Tampa Bay appears to be set with Keyshawn Johnson, Keenan McCardell and Joe Jurevicius as its top three receivers, the Bucs are intrigued by Crowell's mix of size and speed.
Jett, 32, spent his entire career with the Raiders. He entered the NFL in 1993 as an undrafted free agent out of West Virginia.
While Jett has caught 256 passes for 4,417 yards and 30 touchdowns during his 10-year career, the 5-foot-10, 170-pound receiver hasn't been very productive over the last two seasons.
Jett hadn't missed a regular season game until 2001 and his playing time has diminished ever since.
Jett played in just 10 games in '01 and he caught two passes for 19 yards. Last season, Jett didn't play in a single game for the Raiders.
Gruden likes Jett due to the fact that he's still regarded as a speedster and because he's a veteran. Jett played four seasons under Gruden in Oakland, catching 104 passes for 1,790 yards and 10 touchdowns during that four-year period.