If you have an elite QB, free agency and trades work even better. It's called "Belichickism," in case you didn't know.
The draft is crapshoot. Tony Gonzalez is Tony Gonzalez. That 2nd round pick that Thompson refuses to give up for Gonzalez? That's a mystery. And cost and cap hell aren't that big of a deal in this day and age of soaring revenues and titanic TV contracts.