OK, this is exactly why I started this thread.
You say his performance is sub par. He is rated in the 20's you say. Let's look at that....
Yards last year, 10th in the NFL
Yards per game, 13th
TDs, 13th
24 Tds, 17 INT, 60.4% comp. 3913 yds.
No way that equals a 20 rated QB, unless you just say so.
Numbers don't lie. You as a math teacher should know that better than anybody.
I was not using my opinion on his mid 20s ranking. That seems to be the area he is most often ranked when these polls are taken outside of FH.
I could educate you on some mathematics if you would like. You are taking those raw numbers and not analyzing anything. Finishing 10th in total passing yards does not make Tannehill the 10st best QB. If you and I go out to a driving range and agree to a competition, would it be fair to say I am better at driving a golf ball if my drives total 6000 yards and your drives totaled 5000 yards? What if I told you I hit 30 golf balls and you hit 20?
If you are choosing to apply 3rd grade level mathematics, then yes, 2 > 1 and Tannehill is the 10th best QB. However, if you would like to actually apply some more advanced math to the situation then you can start with considering the fact that Tannehill had a very high number of drop backs as compared to the NFL average. This is called skewing the data. Tannehill's high yardage totals are quite skewed.
Also, 24 TDs is not an incredible number. I have not seen the complete list but, I am betting that a few less would pull him down significantly on the list whereas he would have to double that total to get to the top of the league in that category.
But, all of that requires complex thinking and your interest is simply in whatever information can be used to suggest Tannehill is a better than average player at his position. If there were a raw number that does not favor your opinion, you would be more than willing to use more advanced math in that circumstance. Take 8-8 for instance. That number needs a ton of variables thrown in there to consider things such as OL and offensive coordinator dosent it?
The fact is that when you take ALL of the information and consider ALL of the variables, it adds up to Tannehill having been a sub-par QB to this point in his career. Whether he becomes what you believe he is will be seen soon enough.