One-third into our 32nd season of NFL picks in the Miami Herald, I can rarely remember a tougher one. Staying above the Mendoza line (.500) straight-up is even a challenge some weeks, and getting there against the spread is even harder. Not ready to research what was our worst season ever, though. Too early for that — and bad luck! We were an encouraging 8-6 vs. the betting line last week. Misfired on seeing an upset by the Dolphins, but nailed Patriots’ upset win at Cleveland and had three other dogs-with-points on covers by the Falcons, Giants and Broncos. Time to build on that upswing, get…