He did? This would surprise me...he may be (refreshingly) honest with the media, but I don't see him giving negative ratings to specific players on the roster...that seems like a recipe for infighting. See Mourinho, Jose.
It was on Crossing Broad. Not public statements, per se. https://www.crossingbroad.com/2018/11/a-mysterious-union-source-with-accurate-information.html It was the same article which people interpreted as the Union going after Balotelli.
BREAKING: The Philadelphia Union and sporting director Ernst Tanner have agreed to a new deal.Tanner, the reigning MLS sporting executive of the year, was in final year of his contract. Led Philly to first-ever trophy + sustained success since joininghttps://t.co/pZNMHDykLF— Tom Bogert (@tombogert) July 25, 2023