Excellent basic MMO team guide and a great customized guide for CoH. My only addition to the leader part of the guide would be:
Recognize when someone isn't a team player and needs to be kicked from the group, regardless of his level or abilities. You can usually tell this on a few conversation lines or the first couple of battles. Scrappers who constantly ignore orders and charge head into battle, Blasters who use AOEs without regard for the group, or Healers who are lagged out or can't follow with the group fast enough are all group members which should be politely avoided and/or discarded. Having a half-***** team member - for whatever reason - will usually bring the whole group down and should be replaced as soon as possible. Fight some greens and blues, and then issue a few private polls using /tell to make sure everyone thinks roughly the same way before you have a mass group exodus.
Do not be discouraged if you have to lay down the hammer and your SC TF group dissolves early or your newbie Perez group never takes off. It's always better to wait 5 or 10 minutes and reform with potentially better recruits than die a few times and spend hours re-earning debt. If you sense a teammate or two not working out in the first couple of battles, ask him to shape up or boot him manually. If it's a key member such as a tank or a healer then you're better off without him and better off waiting for a better replacement.
A good group leader will scold but not bully, he'll nudge but not mock, and he'll kick instead of wasting time with some big argument. This leader will desingate a Main Assist when possible, instruct support troops such as healers and blasters what do target, and make sure nobody attacks whatever is rooted.
This leader will also figure out the map, know where to hunt, and know the skills of a certain type of Boss, and know whether the CC'er is too low of a level to be of use.