Still has picked up right where he left off when last season ended during this first portion of the offseason program.
The second-year cornerback has been active during team drills, getting his hands on the ball and being as disruptive as he was a season ago.
He's also been praised for his strides as a leader, as those around the team spoke glowingly about the development he's shown headed into Year 2.
"We were just talking and he said how he's seeing it a lot clearer," Chargers defensive backs Steve Clinkscale said last month. "He listened to us last year but he couldn't really hear us because it just wasn't a clear picture for him with a lot of moving parts. Now it's slower for him so he actually hears us and understands us."
He later added: "Tarheeb has really done that, he's really grown up and matured. He accepts coaching and criticism, even in a different way. He did last year, too, but it's even better because he had success, so he knows that it works. He's really done a good job."
Still made his mark as a rookie, but another major productive season could bring him from under the radar to household name.