Years ago when I was at Chase Manhattan (shudder) they were at the other end of the extreme where there were multiple teams within the bank that did the exact same thing, and they would have to undercut one another to get business from other internal teams. Somehow everyone got enough business that the teams didn’t ever merge which is good, because rivalries between the teams became so fierce that none of them could work with someone who had been on a competing team. Managers loved it because if you had dollars to spend you would have a lot of people kissing up to win your favor - you could get a lot of free lunches and end of year your office would be full of gift baskets.