Captain Duckhead, It is possible to end up in your position from CTC, yes. They are ruthless if they decide you don't meet their standard. Can I ask if it was at CTC you did your training?
My experience (and the experience of around 85/90% of whitetail cadets I know) was a very swift transfer from training to employment, with various partner airlines accepting new cadets directly onto jet jobs. That is a far cry from what you are suggesting is the norm...