I’m firing someone after the holidays who tried to set expectations low, and couldn’t do the work I gave him in anything remotely resembling a reasonable time f

I’m firing someone after the holidays who tried to set expectations low, and couldn’t do the work I gave him in anything remotely resembling a reasonable time frame. He may have been doing something like this, but honestly it doesn’t matter. The work I need done takes 40 hours to do, and sometimes more. How it gets done, or what he does otherwise isn’t really my concern, as long as it gets done. By the way, you can do this legitimately by working as a contractor. Some companies will ask you only work on their project, but many will not. The deception is not necessary.