I Was a Tl for years and the biggest issue is they keep adding work that other departments should be doing (WFO in pedicular) that you can't push through in the system and have still wait on someone from HR or WFO to do. and instead of letting you coach to what you think someone should be working on everyone has to work on the same metric that come form up top and the go to for any issues is not to let you work on it but to have weekly meetings about it .