Some of this, but not all, is growing pains. When at Comair, I heard of guys being sent home waiting to be called by the training department for IOE. Some waited as long as six months. Some were content to wait and be paid for doing nothing. Others called the training department or the chief pilot.
Sometimes, the chief pilot called them and asked why they weren't flying. Every time, the reply was "I'm doing what the training department told me to do...wait for their call."
My worst training memory was threatening to walk out of training because my systems integration instructor was in the simulator with another crew when I was in ground school. Training scheduled him to be in two places at one time. Finding a replacement instructor was something they couldn't handle.