If I were in charge of a new airline and FF program I would begin by making all the rules perfectly clear from carry-on baggage to award benefits. No need to be a super ****he to find out how it works.
I would have 2 class airplanes with 'upper' class in the rear of the airplane (on smaller planes) with no access for economy pax. Yes it would take longer for 'upper class' pax to get off the airplane, but they would have more privacy, security and bonuses the economy pax wouldn't have to interfere with. (Yes, I've had it with economy class 'visitors' to FC and Business!!!
I would not serve meals on flights less than 4 hours in 'upper class-none in economy, would sell drinks in economy as in Ryan Air. If you know that no meals are going to be served you can make your own arrangments and do a better job of it.
I would have areas of the airplane that are 'no kid' zones so that adults can work, sleep, talk in peace.
I would make the toilets 50% bigger in floor space!
I would increase circulation of fresh air!
I would hire and train flight attendants who have experience in law enforcement and working with people rather than pretty people who are hired for their low weight and looks. Skill in mascara application would not add points at the interview!
I would sell one-way tickets at fair prices and cut down on all this garbage about 'non-refundable' etc.
I would have an FF plan that issues a debit card that pax can use to 'buy' tickets, upgrades, drinks, gifts, prizes and travel packages.
I would require safety seats for all infants and small children!!!!