I should do this type of thing more often (oh, stop groaning already!
).
Seriously, you can learn new things by focusing on a player and doing some snapshots once in a while in his career.
Remember this guy (Posts #12 and 16)? See now how he has acquired the dreaded "Fragile" injury rating (only thing worse: "Wrecked")? He was "Normal" before.
This demonstrates that an injury rating can change over time. Knew that already? Well, answer this: Does it change as a result of injury history or random changes in injury proneness ratings, or both?
Because, he was still "Normal" when he had his major injury (Post #16). Now he's "Fragile" because he was out a week last month with forearm stiffness?
Anyway, Bill "Wonder Boy" Johnston is damaged goods to me now (no pun intended). In a trade or the free agent market, I would shy away from him despite his ratings and successes. A "Fragile" (or "Wrecked") starting pitcher tends to be sitting on the DL when crunch time arrives.