Ioanna Daskalopoulou Jun 23, 2011:

I agree with Philip. Undertake is extensively used but assumption is more appropriate here.

Philip Lees Jun 23, 2011:

Not quite the same You could say undertake, but I prefer assume. Undertake has more the sense of actually carrying out the duties, whereas assume means just to take up the position so you're ready to start.

Magda P. Jun 23, 2011:

undertake duties?