Not really that much better. Audit year 3 is usually a senior associate drawing ~50-55k base, Transactions Advisory (a.k.a process outsourcing) is either the same or at most 10-15% higher.

I don't know where you are getting this idea that TAS is a prestigious place comparable to management consulting, but that is clearly incorrect and anyone honest who works in a Big 4 before can tell you that.

If your intention is to jump from Accenture to EY hoping for a big pay rise and jack up in CV / social prestige, your gonna be in for a nasty surprise.