Option 1: You try to convince him with rational and emotional explanations about the need for change and the importance of moving forward positively
Option 2: You threaten him by saying that he must be on board, or else.
Option 3: You put up with him and try to minimise his impact.
Option 4: You complain about the situation with any other human being around, but not him
Option 5: You put him in a room with 9 other very positive people who want change; you create a team of 10 and you give them a collective task.
Only one option has a high probability of success. Very high.
Option 1 is probably a waste.
Option 2 works only if you are his direct supervisor, and, even that, he may get away with murder.
Option 3 is called ‘life as usual’, ‘nothing I can do with Jim, he is like that, unlikely to change Jim unless divine intervention’.
Option 4 is what you see all the time, and nothing changes.
Only one option has a very, very high probability of success.