Wow, all sorts of bad info in this thread. Most drivers at Ground can't afford the 4 years of pt work at brown before getting a chance to drive. They need steady money now. You guys talk like all ups drivers make top pay, from what I understand it takes about 8 years to get there. So I wouldn't cry too hard for the guys working for Ground making $16-20 hr for that entire time.
About half my guys are salary. A true annual salary, short weeks, same pay, sick for a day or two, same pay, vacation, same pay. It's not bad. The other half get paid by stop and piece and make substantially more but it varies quite a bit week to week.
In my area just about all the drivers are making more than industry average. Typically $50-60k a year for about 50 hour weeks.
They also deal with much less BS. I have drivers I don't even see for weeks at a time. They show up, do their job and go home never having to deal with a manager. It's not bad.