Original sentence: According to Matthew Bryza, former U.Ambassador to Azerbaijan, the EU would make more sense as a co-chair, because it would represent more of Europe and has experience mediating similar conflicts in the Balkans.Azerbaijani foreign affairs expert Rusif Huseynov proposed Kazakhstan as an additional co-chair in the Minsk Group as a "big actor in the post-Soviet area with  population culturally similar to the Azerbaijanis, but a member of several Kremlin-led organizations together with Armenia" with previous experience in the Nagorno-Karabakh conflict
Edited sentence: According to him, Kazakhstan, which has turned into a big actor in the post-Soviet area, has titular population that is culturally similar to the Azerbaijanis, but is a member of several Kremlin-led organizations together with Armenia.Ambassador to Azerbaijan, the EU would make more sense because it would represent more of Europe and has experience mediating similar conflicts in the Balkans.Azerbaijani foreign affairs expert Rusif Huseynov proposed Kazakhstan as an additional co-chair in the Minsk Group.However, according to Matthew Bryza, former U.Kazakhstan's previous experience in the Nagorno-Karabakh conflict also makes it a good candidate for the mediation process.Therefore, Kazakhstan could be equally close or distant to either warring side