It's complicated...

?we have six people who do this kind of job - let's call them A-F - and ten people who do this other kind of job - let's call them 1-10. We want each of the A-Fs to talk with each of the 1-10s, about what they do how they work together and how they could work together better. Given the different numbers in the two groups, we have time for some of the 1-10s to talk to some of the other 1-10s, which will also be useful. How do we arrange this?
It worked.
Phew.
(Carpet courtesy of the Hilton Hotel, Kents Hill, Milton Keynes.)