Is Indoor getting faster?

Statistically, the runners are definitely faster outdoors than indoors. However, coaches fine tune their schedules to get national class athletes to the meets/sites that will tend to produce fast times. There are more fast indoor tracks out there than there used to be, so more athletes pop fast times indoors than they used to. Nevertheless, the fastest running is done outdoors for sure. Of course, weather is much more problematic for athletes in the outdoor season - and we all know that everybody talks about the weather BUT NOBODY DOES ANYTHING ABOUT IT.

I did not say faster running was done indoor as a whole. What I am saying is MANY runners run faster indoor, than outdoor, which statistics do show. Obviously the sport will produce faster outdoor times than indoor. I am concerned about the MANY INDIVIDUALS in which this is becoming a reversing trend. Many of the big outdoor times come from those running mediocre (for them) indoor. I'm looking for opinions of why.