I am a technical lead for a team of consultants. We have a colleague who joined 1.5 years ago and has severe performance and some disciplinary problems. This employee has also a conflict with me - he very often blames other people (mostly me, but also customers or other colleagues) for his failures/performance, even if he did not accept help constructively before.
The problem for me is that conversations between him and our common manager (I am not present in all) circle around the formal disciplinary problems and shifting the blame instead of addressing the issue that he is just not skilled enough for the job, and not as good as can be expected for his education and background.
So what should I (as a technical lead) do to stimulate this needed discussion between them?