The only practical issues would be if an arbitration case came up that involved a board member, or a UK issue such as the British and Irish naming dispute. I expect Richard would recuse as Arb from such a case. But that's no big deal, lots of cases have an Arb or two recusing, one of the reasons why we have 17 Arbs is to allow for the possibility that some will need to recuse from certain cases.
WereSpielChequers
Will this new official capacity as WMUK paid staff present any conflict of interest with Richard's current role as en.wp arbitrator?