WhyByFlier,
Whilst any recruitment process isn't infallible there is a certain degree of commonality and fairness that must be attributed to all applicants. Hence initial processes must be irrespective of experience and hours. If you apply as DEP it's a given that you have the licence and can fly the jet. Your performance on the day is what is going to get you through the process and that is a level field for all.
Like all of these processes I have been through it provides the employer with a 'snap shot' of who you are and what you are. How well the applicant puts that across is up to them but, as we've seen in the past many times, some people are better than others at projecting what they want others to see.
As far as 'odd-balls' go I'm afraid that you will find your percentage in all walks of life. That's a product of statistics. Also it's pointless stating a list of 'look what these guys have done' people as the company has no control over how these people develop over the years. Perhaps they displayed their 'persona' better at the time of recruitment, certainly those who have gone on to do, shall we say, less savory acts have historically been proven to be able to cover up their alter lives/ego's very well.
No process will be 'perfect' but if the recruitment system puts all applicants on a level playing field of having whatever experience they have to draw from and a licence then it is up to the applicant to prove themselves capable for employment, not the employer.
Can't really get much fairer than that.
As far as those leaving I believe it is due to the amount of time to command. I wish them well and good luck. Ironically the stagnation attributed to the increase in the compulsory retirement age is coming to an end and, with the return of the 'Little Red' slots to BA and the delivery of the 350 XWB, I feel we are about to see some more growth and movement at Heathrow. Potentially increased by the decision to keep and refit some of the 744's that were due to be retired. Perhaps they jumped too soon, perhaps not, personal circumstances will always dictate peoples decisions and I have always respected that. Not everyone wants the same thing.