20th May 2018 From India, Mumbai
The best strategy for you is to create a policy and a guide chart that will help you implement salary adjustments consistently, fairly, and transparently.
There is a popular tool called "Rainbow Chart" that provides a detailed guide on the entitlement for every performance rating that an employee will get year on year.
If you need help on the matter, let me know. But, i charge fees for my consulting services.
24th May 2018 From Philippines, Parañaque