将应用程序从Dev迁移到QA到Prod

I have a number of webservices and clients (click-once deployment) that I am wondering how to deploy efficiently. We have a QA department that reviews and tests releases as well as an operations group that currently does the 'deployment' which basically consists of copying tested releases from QA boxes to Prod boxes. The process is quite error prone as config files are not copied correctly and feedback on if/when/how deployment was done is not being given and therefore I consider this method of deploying a not-so-best-practice method.I have a number of webservices and clients (cli