Back when I was a SWA ramper, we had the gates divided into zones. Typically, a zone would be two gates. Each gate would have a lead and an assist with a floater that would help out. If there was a plane in your zone, didn't matter if it was your gate or not, you were there. So, if your zone was 121/123, and there was a plane at gate 121, you had 4-5 guys there working the flight. If there were a plane at BOTH gates, then the lead and assist for the gates they were assigned would be there, the floater would be at one and more often than not, there would be a sup helping at the other one. You also had bag runners helping with the offloads as well. System seemed to work pretty well, and flights went on time.
Also, when I got hired, if you couldn't commit to 40 hours a week, sorry. This wasn't the job for you. Talking to my friends that are still on the ramp there, those days are LONG gone. Management would rather ditch all the career, full time rampers in exchange for less invested guys they don't have to pay out as many benefits for. There's also a big push to outsource ramp jobs at a lot of the smaller stations. That wouldn't have even been a blip on the radar when I was there. It's THAT kind of thing that's causing the cultural shift and the labor tensions. Some of the guys I worked with had been rampers for 17+ years and planned to retire doing it. Yes, you could clear $100K if you worked it right and busted your ass on OT. But the problem now is guys are having to fight to protect what they've had for decades. Every one of the guys I still know on the ramper here have said "It's not even the same airline it was 10 years ago when you were here." They all say it's going the way of the penny pinching managers just like all the other airlines.