We are a young integration company growing very quickly. Weve gone from 1 tech and some subs, to 5 full time techs in a matter of months. We have one guy who kicks ass on a regular basis, but recently has been screwing up. His last job went over the hours budget by about 25%, and then we had to send another tech back in to rewire certain sensors that were not done correctly. He had other screwups on this particular job as well, but this most recent individual screwup is costing me a lead tech and helper for a day, a lift rental for a day and setting the calendar back 2 days since we also lost today with one of the techs troubleshooting the problem. Roughly 2 grand over and above the cost of reduced profit from being over budgeted time. Not to mention the delayed payment and lost efficiency.
I understand writing up an employee and having a policy with regards to doing things against policy, like say, fighting or other obvioius need for reprimand, but what do you do when someone who you know can do damn good work all of a sudden starts screwing up and showing reduced quality of judgement and work?