It is really useful to know which players can play in various positions, as far as I can see this information is not available on the site other than for your own players. Multi-positional players in my view are worth extra because of their flexibility. I am starting this thread for managers to share their knowledge of which these players are, here are mine:

Samba CB LB
Agger CB LB
Ben Haim CB RB
Corluka CB RB

Richardson LM CM
Jenas CM RM
Dyer CM RM FOR
Elano LM RM
Bellamy LM RM FOR
Lua Lua LM RM FOR