The big 4 professional service firms all had retirement ages for partners (mid 50's) which in recent years has been shelved due to age discrimination cases being brought in. I can personally attest I had a partner crack the shits with this rule, move to one of the 'mid-tiers' and continue doing the same work across the road.
This is quite an interesting situation and very much off topic but I work in the same industry and have seen a few interesting cases unfold.
Not big 4 but I know a private firm who enforced a 60yr retirement cut-off, enforced it on several partners over the last couple of years and then surprise surprise, the managing partner reached that age and decided to do a 'routine contract update' and removed that clause from the contracts (with board approval) amongst other changes. Several of the recently 'retired' partners successfully argued they'd been stitched up and got additional settlements.
To try and link this tangent loosely back to rugby, these partners all signed contracts way back when they get promoted knowing what the lay of the land is. It's similar to a rugby player signing a 3 year deal, reaching the end of the contract and saying they want more money and won't be leaving. They would be told tough biccies.
