How to pronounce “knuckle”(adj) in English

managing relationships. It's about managing relationships down in the organization; it's about managing relationships up in the organization, sometimeswith knuckle-head bosses. And particularly important here, at Google, it's about managing collaborative peer relationships. And all of that takes HTHC. All ofthat takes hand-to-hand combat. That is, it's all of those hundreds of transactions you have every day up, down, and across, that gets people to do what