I am full time at a level 1 trauma center in Detroit, 100,000 annual patient census. 50 residents in our program (have combined programs too). My main department is essentially completely resident driven. There are some attendings who do not pick up a chart, ever. Residents pick up charts, get the workup going, and staff with the attending who then sees the patient. I personally like to pick up charts, and will do so in our lower acuity areas to help flow and prevent the resident(s) from drowning. In the high acuity area I rarely do. We do have a few shifts during peak volume times where the attending staff works independently to off load some of the charts. I also moonlight at our satellites where I fly solo. I find the combination to be nice. Staffing residents is a whole different kind of challenge -- making sure the department is flowing, making sure details aren't missed, and of course, teaching. As soon as you start picking up your own charts, it becomes very difficult to supervise too.
I also like the opportunity to pick up on my own, either in our main trauma center or at the satellites. I'm 4 years out of residency. I still have the hustle in me. I like doing things on my own sometimes without having to discuss with a resident why our workup plans or disposition plans are different. I think this gives me the best of both worlds, keeps me fresh, and honestly, I feel no fears about burnout.