For my October contribution to ESPNCricinfo, I made a survey of the contemporary T20 opener with a comparison to ODI openers in 1980s and 2010s.
Read here.
There’s no comment facility on ESPNCricinfo, so if you’d like to leave a comment, please leave one below this post. I’ll try to reply in timely fashion.
Generic point: you make the distinction between the two segments of franchise-league T20 at 2014; wouldn't it be more pertinent to wedge it at 2016 considering (the popular opinion) that it's when franchises started subscribing to the maximalist school of batting?
The pair of numbers: threshold delivery and percentage of innings in which a player gets out before that is very elegant. Would be nice to have a scatterplot of the two. The further one goes to the top and right, the less useful an opener is, by that metric.