For Class I railroads, record revenues, record earnings ... and unsurpassed congestion and unhappiness among shippers. Not a good combination. The best way I know to go out of business is to prosper while your customers suffer.(Trains print edition, January 2015, page 16.) It gets better. "Railroading turns out to be a growth industry only if measured by executive compensation."
More recent reports suggest the freights are moving more fluidly again. Why? Hire more crews, repair and replace the locomotives, build additional tracks.
The generalization to other enterprises is left as an exercise.