After Marissa Mayer came in, I read that their acquisition strategy became to buy distressed companies with talent on the cheap. This fits that description.
And it was definitely not: -the product (being shut down) -much of the team (only 3 are going with)
The lessons from (1) and (2) would be don't believe everything you hear. The lessons from (3) and (4) are that having great corp dev resources (VCs, advisors, etc) are worth a whole lot.