Co-ordination of teams can be difficult. A lot of players are not motivated by team goals, and only see their teams as something that gives them bonuses for being a member. What if we could change that though, by giving the hegemon the ability to grant gifts to members of their choice each week? Rewards could be something like x amount of troops, or a few thousand drachmas. Maybe a special reward each month, like a holy bond.

I would suggest that bigger coalitions would have more gifts to award than coalitions with less members. A Hegemon could set goals for their team, such as contribution in conflict tourney, troops sent to defend/attack certain targets and so on.