I'm going to be sort of douchey here for a minute and say that I can kind of understand leadership's frustration when it comes to pushing truck (and reshop). My SL TL timed himself pushing z racks and carts and then had a meeting with the team and basically said "you guys are moving too slow and taking too long to push this merchandise, I know how long it should take because I've done it." (I was not at the meeting, only heard about it from several TMs who were.) Maybe this was a directive from above? I don't know, but the thing is, he wasn't wrong. I know I have certainly seen my share of TMs who seem to be doing what I would call "putzing around". Like taking 2-3 hours to push one rack. No sense of urgency, not worried about getting things done in any sort of a timely manner.
Modernization has lit a fire under their butts, and we are moving things better now. Still some dawdling, but not near as bad. Now, all that being said, if a leader can see that a TM is trying, working hard and efficiently and still having trouble with set times, then they should be understanding and at least appreciate that the TM is trying, and not put undue pressure on people who are working hard. A good leader knows their team and knows which ones are trying and which ones don't give a crap.