With an average of two years of NBA experience on their roster, the Rockets will head to training camp Tuesday with more than the usual work to do.

Coach Kevin McHale will have less than a month to evaluate the hand he has been dealt and how to best play it. There is little that can be considered a certainty.

General manager Daryl Morey said last week that only two players on his 20-man roster are known commodities. That did not include his top free-agent additions, guard Jeremy Lin and center Omer Asik. Of the 20 players heading to McAllen, only two — forward/center Patrick Patterson and forward Chandler Parsons — finished last season in the rotation. Only one, guard Kevin Martin, went through the bulk of last season’s abbreviated training camp.

Finally, they will begin to work through the uncertainty. But after a nearly complete offseason overhaul of the roster, the summer of their reinvent sends them to camp with more questions than answers.

– Reported by Jonathan Feigen of the Houston Chronicle Blog