Stalled, Stopped, Stuck

This is where we're at with the retaining wall.

To save money, our contractor wants to pour the concrete into the cinder blocks at the same time as the floor in the basement. This is because the wall won't use a whole truckload of concrete.

I'm all for saving money, but it would be nice to feel like something is finished. I'm not 100% clear on why we're held up on pouring the floor in the basement, but I suspect it's because of the plumber...