Those problems remain unsolved, he says

Harvard professor identifies the 'worst nightmare' in America right now:

“Despite the hope of finding reasons for optimism, the ‘recovery’ remains slow and uneven, largely because America’s competitiveness problems took root long before the downturn,” Porter writes. “Since those problems remain unsolved, it should not be surprising that the average annual economic growth (1.6%) during the current recovery is slower than during any recovery since the late 1940s.”

"Those problems remain unsolved".

So Porter, then, would not expect to see economic vigor appear out of nowhere, say two years hence.

This is good. If I'm wrong about vigor, maybe Porter is right. If I'm right about vigor, Porter is definitely wrong.