I think the LTN owners blew it when they built the new terminal in the wrong place. The airport has grown so hap-hazzardly over the years that th only way to make it efficient was to start afresh. They should have built the new terminal to the south of the r/w, with a full length taxiway and parking stands on 3 sides, while leaving the old terminal operational until the new one was ready. Isntead, we have a layout that causes plenty of congestion on the ramp and indoors, with difficulty getting pax to a/c. Much of the work is easing the problems, but how long before the traffic growth overtakes real capacity again.
Operationally, I think the greatest issue is having to back-track from "A" or "B". A full length t/way would allow twice the number of r/w movements, as well as increase safety.