Except when he played Captain Herbert Sobol, commander of Easy Company in the Band of Brothers series. Sobol was relieved before they jumped into Normandy. Schwimmer nailed that role.
I think there's a split between actors who are unlikable off camera, but can make their characters pop right off the screen, and those who can't.
I also think there's a ton of not ready for off-Broadway lickspittle, ass-kissing Liberals who couldn't pay a single month's rent based on their actual talents, but get parts as Liberal Poster Child charity cases. Excelsior, You Fatheads...!