More than 1 profile

We are in the middle of migrating to Exchange 2013. We are finding that the majority of the profiles being created on the local workstation is "Outlook", which is how we wanted it, however many workstations failed and had to do it manually where the techs out in the field set those problem pc's using the profile "Exchange". Having mixed profiles ok? or am I going to wish they were all consistent later down the road? What kind of issues may I encounter later on if any? Leave it alone or go back and change them all to the same profile is the question...