"A lot of it is going to be on Denarius," Olson said Tuesday, per the Bay Area News Group. "To me, it's that whole character issue, becoming a self-starter, becoming a self-motivated person, and a lot of it comes with maturity. I think he'd be the first guy to say we're constantly on top of him ... we'll just coach him up, but I think he's becoming a more mature player and a more mature person."