As Tiger comes back from his surgery and the recovery related delay to play the US Open this week there is much talk of whether he's rusty or not. Strange term to use after he has presumably had the "rust" removed from the hinge that is his left knee.
Not many are convinced that it will provide any competitive advantage to the others in the tournament. Tiger has played sick, tired, distracted and injured before and still won. Maybe harder for him and closer for the others, but he's still able to pull it out through sheer strength of will. His mental toughness is formidable under pressure.
That's probably the golf and business lesson for all of us. After any setback or prolonged absence it is important to re-focus and concentrate on the fundamentals to achieve our goals. Keep it simple, ignore the obstacles, and go for it.