Past and present Architecture Foundation trustees and staff gathered at the home of Richard and Ruthie Rogers this week, at a party to mark the end of Ricky Burdett's long period as a trustee (he was also the foundation's first director). Of course there was conversation about the future of the foundation but just as much gossip about the future of the Richard Rogers Partnership, subject of some lurid speculation in the press. Here is the classic example of how difficult it can be to carry out successful succession planning. Richard himself is now 70, and has a significant public role in the governance of London and as a Labour peer in the House of Lords, quite apart from spearheading the practice. Mike Davies seems content to see out his career on various key projects, including Terminal 5, while John Young's long-threatened retirement to the Arizona desert looks as though it has actually happened at last.Which leaves Marco Goldschmied looking slightly out of place - suddenly at the age of 60 he is neither old enough to retire (or want to) but not young enough to be part of the new design kids on the Rogers block, ie Graham Stirk and Ivan Harbour.