Glenn admits that England have been "naive" in the past when paying managers high wages and will therefore take a new incentive-driven route based on team performance.
"To start off, it has to be results-orientated," he is quoted as saying by Sky Sports News. "The argument against Sven and Fabio in the past was that it wasn't benchmarked. We were just naive.
"What are benchmark earnings for top-quality football management? I think you have to look at it in that way. So, to get a really good person and they are earning £4m in a club, you have to be in that zone.
"We need to be in the zone of what the world champions [Germany] are paying and, competitively, how to make it attractive to someone. We are going into the market and you've got to pay a market attractive rate, but no one wants to be naive."