A few of those weren't "projects" though. KG, Stoudemire, and Howard weren't. Bynum, and Chandler were.
Look, just pointing out that projects have the higher ceiling, but fail to contribute more so than a player that has multiple skills. Petrie tends to draft the skilled players. In fact the only time I seen him draft a project for the Kings was Wallace, and that was when we had one of the best records in the league, and could take the chance.
KG and Stoudemire were preps to pros and labeled major projects. Why do you think Joe Smith went first in a weak draft over KG and Amare slipped to 11th? KG didn't really blossim into a star for a few years in the NBA because he had a lot to learn. Howard was another guy who had tremendous raw talent and was a great rebounder/shotblocker but is just now developing into an offensive force. Those guys are the poster boys for projects gone right.
Dont get me wrong there are plenty of examples of the opposite (Curry, Ty Thomas, Saene, Darko, Skitishvilli?). Im just saying most of the star big men in the league are elite athletes. Drafting an average athlete is almost a guarantee not to get a star. Now if we feel we have the star power on the team already to simply continue adding average but solid guys and get to contention then Love is a great pick. I simply beleive this team needs more start power.
I think to get a star big you generally need to take a project who is slipping (amare,Bynum) or have a high high pick (Yao/Howard/Aldridge). Since we don't have a high pick, if we want a stud big we need to gamble on a project. If we want a safer shot at a star who is athletic and polished we need to draft small since we are sitting in the late lottery. This would probly mean someone from the deep and athletic PG crop.