As if in today's job market, keeping any engineer provides any sort of guarantee that the engineer will stay with the company "for the future". Most likely he'

As if in today's job market, keeping any engineer provides any sort of guarantee that the engineer will stay with the company "for the future". Most likely he'll stay until he gets a better offer (if he's a good performer) or gets laid off in a couple of years (if he's a poor performer).