Yeah, it looks like Tyrese is figuring out that he can penetrate pretty easily - he's just still learning how to either finish or kick it out. He'll get there, though. He's a bright guy.
Part of that is his role in the offense right now, keeping the floor spaced by staying at the 3 point ready to catch n shoot off Shayok/THT/Wigginton's penetration. I would guess Prohm didn't want to put too much offensive burden on him early instead focus on defense and shooting open threes. TH is capable of getting into the lane and some solid mid range floaters and shots, which well probably see more of as we move forward.