I can't comment on the actual coaching aspects, but 1st thing is, if you don't have enough equipment, don't be shy about pointing it out to your team parents. You never know who may have a bag of balls laying around, a neighbor whose kids grew up playing catcher and have old equipment laying around, extra bats or gloves, etc... You shouldn't demand that parents help purchase equipment beyond the expected, but if you don't at least let it be known that your team is in need of a few items, they won't know to grab that bucket of balls or old gloves out of the garage before dropping their kid off at practice.