Christopher Orr at The Atlantic has been doing a running an evaluation of all the Coen brothers movies released to date. A worthy project, for sure.
Anyone who knows me could tell you I'd rate The Hudsucker Proxy much, much, MUCH higher than Orr does. Then again the world doesn't seem to share my affection for films in which Tim Robbins plays an amiable goofball. See also the general coldness to Cadillac Man, pretty much my favorite Robin Williams movie.
I'd say he's pretty much right about The Ladykillers, but even that exercises the Coens' skill set. It's just that the original drew its power from making variations on a very basic theme: ruffians trying to get the better of a sweet old lady. So their skill at creating specificity and quirk, usually an asset, drags the premise down this time around.