I've said it many times both here and in "real life" - teams filled with any sizable proportion of consults (15-20% and up I would say) are one of the clearest,

I've said it many times both here and in "real life" - teams filled with any sizable proportion of consults (15-20% and up I would say) are one of the clearest, brightest red flags you could see. I've seen first-hand organizations shift from 100% employed teams to being majority consultants, and the majority of those consultants on 1-2 year contracts then leaving. Code quality goes to absolute shit. The name of the game is spending the first half of your contract not getting fired and the second half looking for the next contract. Zero documentation. Refusing to do turnover meetings. Not showing up for the last day/week of the contract because their next contract wanted them to start earlier so they didn't care if they got paid for this one or not. Most egregiously someone just brought in their next contract's laptop into our office with over a month left on their contract. None of this happens with employees. Sure you'll occasionally have someone quit with minimal or no notice but that's the exception. We had to basically assume that any time we got in the last month of the contract was a bonus. Consultants work for their recruiting firm, not for your org, and they behave accordingly.