The Secretary dislikes the DL because he's not doing enough? Humm... how about some appreciation for DL's time and effort towards the youth.
Try working the team angle, as others suggested. Work with your DL a plan that delegate tasks to the parents, then get all the parents together, explain the situation and get them to buy-in to the team leadership.
Some of the Bears must have been in Cubs since Tiger so I gather they like the program. Even if the secretary is correct the other parents won't step up, they might if the den otherwise would ease to exist. Sell your program.
Maybe the Secretary can steps up...