Last year, business travel professionals talked a lot about the fees that travel management companies charge their corporate clients — some saying they needed to evolve. The discussion continued into 2021, including via a new report from The BTA in the United Kingdom. Like many of last year's conversations, the report didn't say a lot about supplier payments. In a management fee model, The BTA wrote, "An agreed approach should be taken to commission. This can be retained by the TMC to offset the fee . . .