The Macie recording is interesting, though not in anyway surprising, I would have thought - In any line of work, you would expect to start at the bottom, put the effort in, and, hopefully, work your way up - why would the babe channels be any different? They're a business, not a charity.
It also ably demonstrates the rather nonsensical nature, of some in these parts, of constantly moaning about the 'usual suspects' always being on, taking over etc. Firstly, it's the producers that decide who's on, when they are on, how many shifts they get, how long each stint is etc., based upon whether or not they 'do the business', whether they are reliable etc., and is irrespective of whether some/all of us here like it, or not. Secondly, such moans can really be boiled down to 'someone I don't like is on, rather than someone that I do like
).
It can be fairly safe to infer, therefore, that if a babe is on, often/over time etc,, then it's because they are doing what is expected of them by their employer (having, in the first place, done what is necessary to get to a stage where they can prove their worth).
Of course, in addition to the above, and like any other workplace, there is also the possibility of 'office politics' and the like, but such things are likely to be relatively minor (I would guess), particularly when set against consideration of the bottom line - making money.
Of course, the same applies to all other aspects, too; for example, personally, I have moaned, on many an occasion ,about the ruinous effect that pervcam has had on the shows (IMO), but the reality is that I could continue moaning about it until doomsday, and it wouldn't make a blind bit of difference, so long as, yep you guessed it, pervcam continues to bring in the money!
Anyway, what point was I trying to make, again...?