The leader wanted to have a tea party, but his colleagues couldn't let go in previous years.

Are you asking the leader what to do if he wanted to have a tea party in previous years but his colleagues refused to let him go? The leader wants to have a tea party, but colleagues in previous years can't let it go. You can tell funny jokes to enliven the atmosphere first, or you can play some interesting games at the tea party. In this way, the atmosphere of the tea party will be active, and colleagues will also be active with the lively atmosphere.