Your argument is one way of interpreting things. I could suggest to you that Perry was the absolute LAST candidate to decide to run and get into the race. He was/is also an acting governor. The other candidates had many more months (or years) to implement a jobs plan, a tax plan, and so on.
I could also argue that his plan(s) WILL be available for debate, in the upcoming debates. Do you recall Huntsman was asked for his jobs outline during a debate and he explained that it wasn't completed yet? He came out with one later.
Cain and Romney have had the luxury in retirement to plan and develop ideas from the peace of their living rooms and a nice Cuban cigar.
Perry's energy plan came out between the previous debate and the debate this week. I could argue that rolling out a plan DURING a debate could give a candidate more shelter because nobody has had a chance to review it and attack it.
Come on, man!