Train generals to lead your troops. The idea would work like this. Each general would in fact be a unit of troops which you could deploy at a single drop( like clan castle). Then number of troops per unit and number of units would be based upon level of command center. I would not see a per use charge on this but more of a upgrade and use if you'd like for strategy. Start at lvl 1 2 units of 10 troops. 2 3 units of 15 troops. 3 4 unit of 20. Lvl 11 10 units of x troops. This would not increase the troop totals just the size of single click unit group deployments. Make a couple groups of multiple troops be able to quickly deploy them at all four corners. Not based on a type of troop as much as a size and number of unit.
Would also like to see clan based mock battles to help your clan mates better their defenses. No exchanges in resources or trophies,not charge for troops used. Just a mock battle to show weaknesses.

