When I was a kid there was a restaurant my family would go to on Sundays called the Dainty Del.
It was the classic mom-and-pop restaurant with the dad out front greeting customers and the mom behind the counter working the cash register.
Often start-up and small-size churches are run using a similar “mom & pop” model. The out front spouse is the people connector or communicator while the behind-the-scenes spouse is the task worker who gets things done.
There is a reason why this husband and wife team fosters growth in many churches, and there is a reason why it limits the growth in those same churches.