You putting a lot of faith in rookies. I dont know about PJones but i saw Lamb this preseason and he was right on his way to the developmental league
in 16mins of play with a shytty houston rotation he, averaged 0.385 from 3 ,38fg, 6.2ppg and 4 rpg. and remember this is with a shytty houston roster full of pfs and centers. he will be good in a legit rotation within limited minutes.