-Budget

-Expectations

-Timeframe

Having realistic expectations for each of those ensures an overall quality. As if the pay and timeframe are too low, without lower expectations, the job has less chance of being approved.

Other then that, we may look at how many plumbers are active on the board, as compared to electricians and carpenters. If we need more plumbing jobs, we will be more likely to admit good plumbing opportunities. Other factors play in on a job by job basis.