"It does not matter how slowly you go, so long as you do not stop."-Confucius

This is a great piece of advice for most people but NOT for golfers. If you are not keeping up with the group in front of you and the golfers behind you are on your tail, pick up the pace and play ready golf or let them play through. Keeping the flag in is one of the best rule changes I have seen, in my life, for speeding up play. No need to ever touch the flagstick again.