Chickens and No Eggs!

We expanded our chicken coop/run a few weeks ago, in an effort to get the ladies back into egg-laying mode....only two eggs from the older hens since then. What gives? We switched back to Feed Depot's egg layer crumble (Shells did not have the grit and calcium FD's does), and gave them a nice sized area to peck around in....sounds like we need a chicken whisperer...