"middleman role" is a correct and usable term in written English.
You can use it to refer to a person or entity who acts as a liaison between two parties. For example, in some real estate transactions, an agent may fill a middleman role, connecting buyers and sellers.
The systems also serve business owners by shifting the decision-making to employees and taking the employers out of the middleman role.
A former Shell Oil executive heads a panel supervising Iraq's oil fields and crude will now be sold directly to refiners, thus eliminating a middleman role once dominated by Russian oil traders.
Other supporters argue that Hong Kong can retain its middleman role -- with a few tweaks -- as a provider of services to the next generation of foreign companies that try to get into China.
For its middleman role Ebay collects a fee of up to $2 plus 5% of the final price.
So the idea of ending this middleman role here in the college education space was more well-received than it would have been in other circumstances".
Weinberg's outsiderness also allowed him to play the classic "middleman minority" role.
In 2001 Gazprom cut out the middleman's role for Itera, which bought gas from Gazprom and Turkmenistan, then sold it at a far higher price in Gazprom's own markets, according to U.K. corporate watchdog Global Witness.
These inevitably have a knock-on affect on the way that businesses will be able to use these sites, and also what role middlemen like Falcon.io, or Sprinklr and Hootsuite will play.
A growing number of Web sites now play the role of middleman, connecting aspiring contestants with casting directors.
The I.S.I., tutored in artifice by the C.I.A. itself, thrived in the role of middleman benefactor to the many mujahedeen groups.
The only difference, Ms. McGeehee said, is that the money would go directly to the state parties, eliminating the national campaign committees' role as middleman.
