pudge said:
In the games Dzeko was an unused sub we have; won 5, drawn 1, lost 0
In the games Tevez was an unused sub we have; won 2, drawn 2, lost 0*
In the games Aguero was an unused sub we have; won 0, drawn 0, lost 2
*We lost to Southamption when he was out of the squad for personal reasons not injury
There's a statistical comparison
Yes, that is (technically) a statistical comparison, just not a very good one. You seem to be trying to get at how well we do when each of them is absent (although for some bizarre reason, you've only included games in which each player was sitting on the bench for the entire game rather than simply didn't play, suggesting that being on the bench, but never coming on has some sort of backwards causality that affects the result - how do the players on the field know a sub will be unused until the very end?). Looking at team results when a player is absent is similar, but not as good as, looking at team results when each one is playing, which I've done for every minute played by each of them, both this season and last (a player's absence might have an indirect effect, but a players presence has a direct effect).
As well as choosing a strange way of measuring effectiveness, your sample sizes are extremely small (only 2 games in which Aguero was an unused sub - away at Real Madrid and away at Spurs). You've complained that I'm condescending, so I won't be, in which case I must assume you understand why this sort of sample size yields significantly less meaningful results than the much larger sample size I used.
However, my time looking at your data hasn't been completely wasted. I started this thread to show that whatever people think about Dzeko's ability on the field, it's a fact that he's been a very effective striker for us over the last two seasons (slightly more so than Tevez, and slightly less than Aguero). But what also interests me is how so many people can be so wrong about that fact. Now, I'm not saying they're necessarily wrong about his effort, or his control, or his shooting, or any other specific aspect of his game, because that's not the point I'm trying to make. Just that if you ask those same people, I'm sure they'd also believe that he's simply been less effective for the team (hence comments like "Dzeko must not play this week" or "No Dzeko, no problem"), whereas, however he manages it, he's certainly not a detriment to the team, and in fact compares very favorably with both Tevez and Aguero.
So why don't people realize that? I think your data is a clue - you've focussed on just a few games in which you were probably glad to see Dzeko sitting on the bench the whole time. "Yes!" you probably said to yourself, "We'll definitely get a good result now!". And on three recent big occasions (Chelsea at home, United away, and Chelsea in the FA Cup), you were right. These situations confirm your suspicions and weigh much more heavily in your memory than all the games and minutes when Dzeko played and we also did well. That's where a good statistical analysis can help out, because it weighs every minute equally which the human brain doesn't.
Obviously this response (that you asked for) will have no effect on your opinions or your posts. We won't be able to have a reasoned debate based on the facts. You'll simply accuse me of somehow twisting the data, act petulantly, maybe make a dig about my ability to appreciate and understand the subtleties of the game, and then move on to other threads to be argumentative without adding anything of value to the discussion. Have fun with that, and feel free to bump my threads any time you like.