When I say "old", I don't mean elderly, I just mean someone who's been there a while. I also did not say/imply ALL of the TMs who've been there forever are worthless/lazy. Just most of the ones at my store. I understand there are plenty of younger, lazy TMs, but if you've been there for a while, you should know the day to day tasks and be able to keep yourself occupied. I've been at Spot for nearly two years and I keep busy even if my workload is light. Always having small side projects to help the store run smoother in small ways.
My point is, no matter how long you've been there, you should always be willing to go above and beyond and be a good example for other TMs. Especially if you have no intention of quitting anytime soon.