My opinion remained the same, even after you gave additional information. IMO they are both at fault. However, the rep definitely took the wrong approach in his response. Being in the “X Y” generation, I can agree that we are more sensitive about our personal time. I don’t know the age of this rep, but by his actions you would think he’s new. Come to find out he’s been there the longest. He should have known the consequences of his “reply all” email. Even if the VP would have agreed with him after thought, the rep gave himself no chance of this happening. Not smart, not smart at all…
Makes me wonder how good of a sales rep he is.

I agree with you on your thoughts as well. Never having a weekend meeting before makes me side with the rep a bit more, even though he/she is still wrong in sending a reply-all email. Given the VP was hand picked by the CEO and the rep who sent the reply all had the longest tenure, it makes me think that he/she could be harboring some ill feelings towards management for not being considered for the VP position?

This still does not change my opinion though. I still think both are at fault in their own ways. I would place blame on the lack of a relationship between the new VP and sales reps and possibly a touch of resentment.