I would be THRILLED if I was put into some kind of a short probationary period, with limited access (and potentially restricted salary, with retroactive reimbursement) while I showed what I was worth. I personally have a hard time demonstrating that in short interviews, and it's only once I come in contact with the shape of the company's problems do I show my value. Imo it would lower the stress and paranoia on both sides over a candidate's fit.