Coach involvement in pre-match warm-ups

How much or little should coaches be involved in warming-up a team before matches? I've got my views on the subject. What about you?

Thinking about injury prevention

A reader asked for some advice on pre- and post- practice and match activies, and other work, to help avoid injuries and improve performance.

What can we do with our players during warm-ups when we aren't able to go over the net? This is a question asked by a reader.

A coach emailed in a question about pre-match warm-ups. He's looking to change things up. The first question is the purpose of your warm-ups.