Ronand not sure where you get that idea from???
We need Captains for sure, but we are actively encouraging F/O to apply, most that do so pass the assessment which is a very basic PC (from the RHS) followed by a command interview which includes a short 20 questions closed book exam to make sure you have looked at the manuals, pass that then your command training starts, it much more about maturity than flying skills.
We have taken a lot of command ready ex Ryanair people,in general a year should see you move seats if you meet the requirements and put the work in.