You could substitute about a dozen names into this exact quote. Morris Almond and CJ Miles right off the top of my head.
Morris Almond never had a good season in the NBA. CJ Miles didn't have a solid season until he was in his 4th or 5th year. Lyles had a strong rookie year and then a big regression. That's the difference. We're not hoping for something we haven't seen from the player before like people were with Morris and CJ.