A few years ago Garber spoke about wanting MLS clubs to play more competitive games against Liga MX clubs, and also playing competitive games against the top South American clubs. Now we see his plans coming to fruition.
1. The Leagues Cup, which started in 2019, was contested between 8 clubs (4 from MLS & 4 from Liga MX). The new expanded Leagues Cup, starting this year, will have all MLS clubs & all Liga MX clubs in a month-long tournament.
2. Next year, Copa America will played in the U.S., and it is planned that CONMEBOL & CONCACAF will finalize the plans for a club tournament between the top clubs from both confederations.

*I think in about 2 years, MLS clubs will start using their MLS Next Pro teams to play in the U.S. Open Cup. MLS owners & coaches aren't fond of the competition, and a month ago Garber openly said that he didn't like it.
*It's said that Garber is planning to propose changes to the MLS salary cap - increasing the minimum player salary, increasing the salary cap, and also having a flooring to ensure owners will have to spend a reasonable amount to have a good & competitive squad. The flooring is probably aimed at Stan Kroenke .