[ponderings]

I've had strange success walking up to the guy, telling him I want us to deliver fantastic work together, I want to work with you - together. What I don't want is to go to the boss and tell him you've fucked up, you are lazy, that you are doing a poor job and that we would be better off without you. This is the last thing I want. The best outcome is that we get someone else who knows nothing. If that doesn't happen you would blame me. Then I give him a detailed list of things I think they should have done differently.

It costs a few relationship points but they do respect the practicality of it.