Think it's would be good for Alpine.
I think Otmar has been somewhat at odds with the Strolls since they took over. I have no facts to back that up. I think something like the replacement of Perez with Vettel had little input from Otmar. It was trust upon him. It's kind of crazy to have a team principle having little input on both team drivers.
With regards to the rumor... I'm not sure if this is just BS, Otmar leaving before the axe, or Otmar just leaving cause he's had enough of the moves that have force his hand and wants to go to a place he'll have more input.
I don't think Whitmarch is a candidate to replace Otmar at AMR.