I don't work in the space anymore, but I work in an adjacent sector so I still interact with EMs and Partners.

BCG Gamma is similar to QuantumBlack, but BCG's Lighthouse is much more comparable to QuantumBlack.

That said, in general BCG hasn't seen the same level of scope creep as McK has. BCG has also had a strong Life Sciences, VC, and Tech Due Dilligence practice because of VCs origins in Boston (YC was originally in Boston for example).

That said, I do think BCG and Bain will also do some back office culling now that McK has opened the door.