By Daniel Bates Raiders head coach Josh McDaniels didn’t spare any expense when it came to saying goodbye to his former team. Last week, the longtime Patriots offensive coordinator took out a full-page ad in The Boston Globe to say goodbye to New England. McDaniels wrote out a roughly 1,000-word letter thanking the organization and its fans. “Josh McDaniels penned a classy, thoughtful thank-you note to Patriots fans in Wednesday’s Boston Globe,” ESPN’s Mike Reiss wrote in his Sunday column. “That he chose the Globe to do so, and not social media, wasn’t an accident. McDaniels might be just 45,…