3. Mason McDonald – No. 34 overall in 2014
The Flames may now be set in net for the foreseeable future with Jacob Markstrom and Dustin Wolf, there was a time that they were desperate for a goaltender of the future, and in 2014, it led them to Mason McDonald with the No. 34 overall pick. After some solid years in the QMJHL, the big prospect was a great pick for Calgary at the time, but unfortunately, he was able to make just four starts for the then Stockton Heat in the AHL, and has struggled to land a job since being released by the Flames.
In his final AHL season with Stockton in 2017-18, McDonald made just 4 starts, allowing 13 goals over that time, and after seeing Thatcher Demko, Alex Nedeljkovic and Vitek Vanecek being selected with three of the next four picks, this one must hurt Flames fans even more.