I strongly feel that the problems are more fundamental than that. The ridge out west is poorly oriented, very broad, and progged to be further assaulted by the strong vort lobe falling south from Canada. There's just nothing to reliably drive the northern s/w down through the base of the trough in the fashion of big phasing systems. The disturbance leaving the Southeast coast tonight is definitely not helping, though given the lack of any meaningful baroclinicity along the coast in the first place, that may not matter much in the end, either.