I might come handy if:

You are time-poor, or you are going through accelerated growth, faster than you can hire.  You have your own job to be getting on with without focusing on recruitment. You have a talent or resource function which is failing and needs fresh eyes.  You need some immediate, experienced support.  You could simply use the extra hands-on-deck from an expert with proven success, to help create or re-centre process where it is lacking, and to get things done.