This one is personal. Marty usually talks careers, vision, and chasing your dreams. But this week he pulled back the curtain on his own cancer diagnosis and his journey through daily radiation. Sitting beside him? His wife, Kristi, joining as guest and offering the most honest counterweight in the room. Here's what makes it magic. Marty is the relentless optimist, the guy who plans for the bright side to a fault. Kristi is the "protective mom," wired to picture every worst