In today s robust economy, managers and lead people are at a premium, and getting work out often becomes more critical and necessary than quality, and surely training. The problem is, the quality issue always catches up with you, as does the training. It is not fair or reasonable to put people without experience in a position they have no understanding of. Previous management experience in no way guarantees any positive results, other than giving you a frame of reference to look back at. In fact, in some instances, people with no experience in management, but good common sense, evolve into good managers over a period of time.
Period of time is critical to remember.
Give them the time they need to develop. There are exceptions to every rule. If production pressures force these miscasting situations, then you owe it to your company, and to the team and the person, to train them. They will run into situations they have never seen before, or worse yet, have seen, but always been on the other side of. Managers promoted from the ranks are not in an enviable position.