It's 100% denial/ego. I've been a contractor longer than I'd like and it's the exact same response I see when I join a new team. The team complains they have too much work and can't get anything done, so their manager pulls me in. Suddenly, they don't want to give anything up. I'm actually in the middle of this right now. The team "is swamped" yet somehow, they are able to argue that almost everything I can handle is best handled by them and they don't need help. Fine by me, I'll sit around and get paid. But it smells exactly the same. They don't want to admit that A - they are replaceable and their work isn't that unique and B - they are the bottleneck, not the process or workload.
Well who are you? Why should they trust you to actually complete a task and not dump unfinished work on them when your contract is up?
The manager didn't do the work to figure out what a contractor should do before hiring one. Why would they expect that org to plan the exit if they didn't plan the entrance?
Behavior shouldn't be surprising, no?
This sounds like my ideal job. How do you land such gigs?
> A - they are replaceable and their work isn't that unique and B - they are the bottleneck, not the process or workload.
The problem rather is: often good programmers have quite good ideas how these problems could be solved, but for "organizational politics" reasons they are not allowed to apply these solutions.
Thus:
Concerning (B): Because they are not allowed to apply their improvement ideas, they are the bottleneck. But being the bottleneck is not the root problem, but rather a consequence of not being allowed to improve things.
Concerning (A): It is indeed often the case that if you simply let someone else do the work, the code quality decreases a lot and in subtle ways. Good programmers are very sensitive (and sometimes vocal) with respect to that - in opposite to managers.