It is hard to find dependable people, lets face it, this is not a career choice for many. Those who choose it, and are good, end up going out on their own. They take your training and claim it as their own and go into competition against you. But most guys do it only because they can get a job. Its hard and has many life or death responsibility's. So they fizzle out or crack under the pressure. That is why the industry has many "bad guys" in it. They work for a couple weeks then go out on their own as well and become the hacks we all talk about. 2-3 weeks exposure and they think they have enough knowledge to do this professionally. Tree services often have a high turn over rate. Whether by firing or quitting, most guys wont or don't cut it. Then you have those who claim to know whats what. Give you a long list of their so called achievements, only to find out that they learned to talk the talk, but damn sure cant walk the walk, Get them on a job and they cannot do basic tasks, simple task, that the one who claims to know what is going on, should have mastered in the beginning, like using a porty or using a big saw. You can figure them out pretty quick when ya gotta tell them how to put on a set of chaps. I have tried many, only to be disappointed. "I am the best climber you have ever seen" Then you put them up there, and they refuse to walk a branch or have no concept of rigging "whats let it run mean?" "how am I suppose to cut this, I cant get balanced" best climber huh!
Then you have the guys that are clean cut, loyal, honest and hard working, but just plain dumb. Feel bad for them, but they don't last long either.
Good luck on your search, if you find a good one, better latch on to him!