You need to survey your employees through an employee engagement survey.  They have things to tell you and you should know what they are.  However, it has never been easier to run a bad survey so watch this and  learn a thing or two!   

Adam Zuckerman is an expert in employee surveys.  He speaks plainly  about their value in this video with loads of tips on running employee  surveys.    

Follow Adam on LinkedIn at https://www.linkedin.com/in/adamzuckermanphd/