He should mend fences before leaving?

Mending fences before leaving is crucial for maintaining positive relationships and ensuring a smooth transition. It allows for the resolution of any lingering conflicts or misunderstandings, fostering goodwill among all parties involved. By addressing these issues, he leaves on a more amicable note, which can be beneficial for future interactions or collaborations. Ultimately, taking this step demonstrates maturity and consideration for those he is leaving behind.