Loyalty begets loyalty. All volunteers value evenhandedness. Treating people fairly doesn't mean everyone gets to do everything, but it does mean that the leader is equitable in decisions. Being fair increases credibility. Know when to get help and from the best.
Leaders are always willing to ask for help.
If your team has a task that is difficult and no one is experienced in this area, go outside and get the best help available. Volunteers admire people who admit they don't know something. Finding the best help available is something that builds respect by members of the team. There are not enough hours in the day to complete your work. Frazzled is the watchword for the moment.