Now this is fun. Assessing 2nd round selections league-wide. The shortcoming of such an analysis is twofold: 1) "Games played" is not an ideal indicator of success; one must examine each selection to truly assess level of success, and 2) time warps the results giving better results to players who have played in the league longer.
To counter these shortcomings, this tool allows for manipulation of the data, by customizing the time factor and clicking on each circle to view the players selected. Come to your own conclusions.
How to read this graph? Just like the article NHL Draft: Evaluate your Team's Top-10-Selections, the bottom axis represents the number of selections, and the vertical axis represents the average number of games played by the players selected. The size of the circle represents the total number of games played.
Generally, the top-left quadrant shows teams with few selections but big impact. This is excellent. Bottom left, shows teams also with few selections, but with poor outcomes. As you go to the right with more selections, the higher the team (greater average games played per pick) the better performance. These teams got more "kicks at the can", and should have selected some good players.
Enjoy. And please comment below and debate on twitter!
(Image of selection 'Canadiens', using all years)