To commit oneself to too many projects, so that there is little chance of completing them all satisfactorily.
get down to business
To commit oneself to a task or activity that is employment-related or …
bite off
To accept or commit oneself to a task, project, notion, or responsibil…
belly up to the bar
To commit oneself to a challenge or task; to accept a responsibility; …
see one's way clear to
To manage to commit oneself to (a decision or course of action).
peanut butter
To spread resources too thin.
spread the word
To tell a lot of people; to inform as many people as one can.