I've done plenty of low level IC type mentoring: "make sure your MR has a good description" "use library XYZ instead of DIY" "you'll need to go to Design Review for this project" etc. But I'm curious about the other angles as well; on one hand I could do a better job of guiding juniors. On the other hand I could do a better job of recognizing a good vs junior manager, and potentially help them improve. Many times I've seen managers ask "how could I help you better?" to which I had no good answer. You're the manager, that's your job to figure out :-)