Interesting times....here's my 2p worth.
Go have a strong brand name and, by all accts, are a well run,happy outfit...and now making a profit...good operation..why spoil it?
IMHO Buzz, on the other hand, have the wrong a/c (146s)for their routes- (they only have 2 737s), less flexible crewing agreements, and are not run with the same flair or dedication in Management, Ops or Eng areas.
A Go management buy out or 3i team buy out would be wasting money buying Buzz. They would do better to buy Go and.... then let the natural course of events take care of Buzz....many of the good Buzz people (and there are lots of them..) would naturally join Go anyway.