[Editors] talking the walk?

[Eve Sullivan]

hello fellow editors and editorial assistants,

reading the spotlight on our homepage this morning

http://web.mit.edu

. . . In addition to the new commuting options, MIT is hiring a 
commuting coordinator who will develop, implement and maintain a 
top-tier commuter services program in keeping with the Institute's 
stated goal of "walking the talk" on energy and the environment. 
Working closely with community members, the coordinator will set up a 
feedback channel for new ideas and suggestions. . . .

i wondered about the phrase 'walking the talk.'  i thought
that the correct phrase is 'walking the walk' ...as in 'all he
does is talk the talk: he doesn't walk the walk.'

what do you hear, say, read and/or write, esteemed colleagues?

eve sullivan