This is going to be controversial but...
I would argue that, given the technological and tactical disparity between the Korean vessels, both the Geobukseon (turtle ships) and the 'standard' Panoksean type ships over the Japanese vessels, that any actually competent admiral would have had the same or very similar levels of success.
The Korean ships were far more heavily built, even the 'standard' Panoksean would be considered timberclads by later standards, carried far more, far heavier, and far superior cannons, were more agile, were infinitely better suited for the actual littoral environment that they were intended to operate in, and were especially well designed to no-sell the preferred Japanese naval tactic of closing and boarding.
Any competent admiral who simply kept his ships close in shore where the deeper draft Japanese vessels would be struggling, kept the range open in order to bombard with superior cannon, and forced the Japanese to struggle through a killing field before reaching his own ships would have had similar results. The fact that other Korean admirals signally failed to manage any of that is as much an indictment of their incompetence as a mark of Sun-sin's brilliance.
I am not saying that he isn't an admiral of a level with a Nelson or such, what I am saying is that he isn't some incredible super-admiral with kung-fu grip. To listen to the elegiacs about him, you'd think that he fought off the Japanese fleet while armed with a pen knife in a leaky canoe while they were sailing WW2 warships.
I would argue that, given the technological and tactical disparity between the Korean vessels, both the Geobukseon (turtle ships) and the 'standard' Panoksean type ships over the Japanese vessels, that any actually competent admiral would have had the same or very similar levels of success.
The Korean ships were far more heavily built, even the 'standard' Panoksean would be considered timberclads by later standards, carried far more, far heavier, and far superior cannons, were more agile, were infinitely better suited for the actual littoral environment that they were intended to operate in, and were especially well designed to no-sell the preferred Japanese naval tactic of closing and boarding.
Any competent admiral who simply kept his ships close in shore where the deeper draft Japanese vessels would be struggling, kept the range open in order to bombard with superior cannon, and forced the Japanese to struggle through a killing field before reaching his own ships would have had similar results. The fact that other Korean admirals signally failed to manage any of that is as much an indictment of their incompetence as a mark of Sun-sin's brilliance.
I am not saying that he isn't an admiral of a level with a Nelson or such, what I am saying is that he isn't some incredible super-admiral with kung-fu grip. To listen to the elegiacs about him, you'd think that he fought off the Japanese fleet while armed with a pen knife in a leaky canoe while they were sailing WW2 warships.