Outsourcing vendors often use “blended rates” to calculate the monthly / quarterly amounts due by their customers. Simply put, the blended rate is an hourly rate that applies to any single team member, regardless of seniority, from the less experienced developer to the most senior manager, with the possible exception of the top management.
Beware!
The apparent advantages of blended rates are increased invoice readability, better cash flow predictability, and the illusion for the customer that they are getting the most senior resources at a very attractive price.
What usually happens is the opposite.
Blended rates are first determined by averaging the average hourly rates of the initial team, a team that usually comprises a higher percentage of senior individuals to help reduce the learning curve and the transition times.
Chances are that, after a few months, the vendor will start pulling out senior personal from the team, and replace them by less experienced ones. Some vendors have become experts of this, and decrease in quality will happen very gradually.
When changes in quality become visible, a common solution is to add more senior individuals to the team; a solution that yields in a rapid increase in quality, to the customer’s satisfaction.
And a few months later, … ditto: senior members are replaced by less senior ones, etc.
While blended rates make sense for larger teams, they do not apply to smaller teams. If you are a small to mid-size business, stay away from them. Make sure instead that you are provided with means to know every team member, their qualifications, and their true participation to the development effort. If you do not feel up to the task, go for fixed price agreements; they are a much better way to pay the fair price while reducing the overall risks attached to IT outsourcing.
Remi
www.vsisoft.com

