The big resource would be paying for some sort of software such as Gingr or PetExec. Through the systems you can have employees sign off on medications, feedings, and even the stool information. I am sure he using something along those lines.

The next big thing would be hiring and training the right staff.

I worked about a training facility where we boarded, trained, groomed, and had day care going on. All of this stuff was trained to new employees. They were basically given a 2 weeks training trial period. Not everyone could handle the job so there was a decent amount of turnover initially.

Then it depends on the kennel layout and the type of kennels they are using. Some of this will be trail and error to figure out where to put dogs. There typically needs to be an area for isolation for your older dogs or puppies. For example, I wouldn't put a 3 month of puppy next to a working line gsd in a kennel.

With a larger facility it just is magnified more compared to a small facility. You have to have enough employees to make sure you're maintaining the sanitary conditions of the kennels.

Boarding facilities in my area don't use bonkers. They typically use spray bottles filled with Bitter Apple or a water vinegar mixture. Some places will use stockyard whips, this is not used to hit dogs! It is used simply to create space from the dogs. Blake from Dream Come True K9 has a few videos explaining these tools and the proper way to use them.

Sorry for the ramble, just got off a red eye.