Couldn't you just use the editor to check a load of players batting and bowling abilities at the start of the season, play a season and check again and so on for several seasons.
You could do this if you know how the hidden attributes that affect batting and bowling performance are represented within the game. As I said in my previous post, I think the only people who know this are the game developers and I think it is effectively impossible for anyone else to reverse-engineer it.
If it's not clear why I think this would be impossible, let me give an example from the world of football management games. This is a screenshot from CM Explorer, a fan-made savegame editor written 20 years ago for Championship Manager. (Of course, computer games have got a lot more complex in the 20 years since then, but with its lack of funding Cricket Captain is possibly a bit closer in complexity to the older football sims).
Each player has 40 visible attributes ("Playing attributes"), 13 hidden attributes ("Special" / "Mental") and two semi-hidden attributes ("Foot": in-game, you are shown their stronger foot, but not how strong their weaker foot is).
This editor was an absolute masterpiece, but it was
relatively easy to make because the complete structure of the attributes (both visible and hidden) were made publicly available by the game developers. Therefore, this editor is "complete" (has no missing attributes) and could therefore be used to analyze player development in the way you suggested.
By comparison, the Cricket Captain editor is total garbage. It shows you the handful of visible attributes that are available in the game and nothing else. In the 10+ years that I have been involved in developing the editor, I believe that 4 or 5 hidden attributes have been found within the several thousands of bytes that represent each player (but we have absolutely no way of confirming if they are what we think they are because we don't even know what hidden attributes exist in Cricket Captain, how many there are, or where to find them). From what I have seen and tried, trying to do any kind of analysis based in this pathetic subset of invisible attributes is beyond pointless.