Sounds like mismanagement in the higher echelon. The team leader should lead up the chain to ensure deadlines are realistic and hindering restrictions are dealt

Sounds like mismanagement in the higher echelon. The team leader should lead up the chain to ensure deadlines are realistic and hindering restrictions are dealt with. How does he do this? By complying with corporate rules to show good faith and intervene when necessary. It's also important that he understands the rules and communicates them to the team. The team manager should be on good terms with upper management and the team. This is hard and requires skill.