I've seen it go both ways. I've had copilots who were so incompetent I really did tell them to do nothing...don't talk on the radio, don't touch anything. They were that bad. I've also had some for whom I wrote upgrade recommendations after the first few flights. For those, when they acquired more experience, would make excellent candidates. And they did.
The question isn't so much with the Captain, as it is with the first officer. What's he (or she) made of?
I was babysitting a newly minted captain one day, and as he entered the runway for departure, he let out a low whistle and said "Wow. This is just like the simulator." That sort of thing pegs my disgusto-meter.