to commit ourselves ?

vielleicht auch.

Thanks, but I don't see how to incorporate that into the sentence. I have:

Now it is up to us to ..?... the change into a product oriented, globally operating company and to take up the tasks before us ambitiously and with much commitment.

Maybe:

Now it is up to us to achieve / stimulate / effect / drive the change into a product oriented, globally operating company and to take up the tasks before us ambitiously and with commitment.

(I would drop the "much" at the end).

Thanks Tomtom