Bert: Who’s going to be minding the store?

After the “merger” with PPL, in this scene, Bert asks who’s going to be the president of Stirling Cooper. I always thought it was odd that this hadn’t been discussed ahead of time. If I was selling my business with a plan to stay on, it would be very important to me who was going to be running it and who would I would be answering to. I can’t imagine the partners, especially Don, wouldn’t have asked this along time ago. Is this a deviation from common sense for dramatic purposes, or is there some weird etiquette I’m not privy to?

https://youtu.be/B5N3OQklFEU?si=oWpoemBE-c4ATR_n