We, at Zimplu CRM, know how much sales people hate to fill "unnecessary" documents, that's why we made a little upgrade to our Sales Activity Report and included all the details a user wrote into a note or a task. This way managers know not only that their employees are active but each detail of every discussion their employees had with prospects/clients.
This is not only about control, but delivering the proper feedback to the sales representatives and finding out insights about why opportunities are won or lost. It is the perfect way for a sales manager to deliver his expertise to his co-workers by giving the right feedback at the right time.
Here is a screenshot with our upgraded activity report in Zimplu CRM:
This upgrade was made at the request of our customers who want to have a better control of their sales department.