If jetBlue's flight path is "worrisome" then I'd hate to see the adjectives being used to describe the so-called flight paths of other major airlines in this business. This goes to show the relativism of such media headlines.
As for Winglet's comment about good management, I agree with his position. As it applies to jetBlue one can observe several "symptoms" of good management at jetBlue. It begins with the fundamentals such as the choice of an effective business model, sustained profitability, growth, and superior marketing.
It also is evident in how the airline has responded to changes in the external competitive environment. Issues such as 9/11 and competitive responses from the world's largest airlines have allowed management at jetBlue to show their ability to overcome and adapt to such events in which they do not have full control.
However, most important of all is the attitude that management at jetBlue adheres to with regard to how they deal with people. Whether it be their own employees (no furloughs, #1 priority), their customers (exceptional service), or even their competitors(providing jumpseats to F/As without reciprocal agreements, or the lack of speaking ill towards competitors, a la Bethune & Carty). This airline has proven itself to be a consistent role model for all management teams in the industry.
By no means is jetBlue immune from tripping over itself through poor leadership, or clumsy management, but so far they've given no reason to suspect that is a problem which must be addressed over the near-term.
You can accuse me of drinking kool-aid, but the facts speak for themselves in this case.