If all they offer is
MA plans then you will probably end up selling
MA's to people that would be better with a supp.
MA's have their place, but when a supp is available that's what they should have. Watch out for the person that tells you they make a living selling
MA's, they're probably commission driven and they hurt people along the way.
Now, as for Coventry...love 'em. That's the only one I sell anymore other than a few Cigna plans where they fit.