I'll be really curious to figure out who he worked with to tinker with the angle of his swing. Did he pick it up on his own? Was it pointed out to him in the off-season by one of these 3rd party athletic training programs independent of the team? Was it Coles?
Coles may not be worthless. I think he may have helped Robles if the fellow can ever stay healthy. There was that "hold the dodge ball between your forearm and bicep when you practice swing to avoid opening up too fast to reach for pitches" trick that really seemed to work going into 2023. I also think Garcia is showing signs of improvement, too. As for Winker, I don't know it's much more than being fully healthy.
Wasn't it said recently Abram and Winker worked together all offseason and Abrams was really happy when Winker was brought on by the Nats. Supposedly they watch each others at-bats and mention it when they see something off.