Actually, I did not specify the improvement solely with regard to attitude/work ethic. Without any insight, that would have been nothing more than a wild guess.
However, Jurco was said to be an inconsistent floater. Since he was drafted, he added a strong junior season and his first AHL year, where he adjusted late, but remarkably.
After some unusual celebration, Mrazek's attitude had been questioned; meanwhile, he went from AHL backup to one of the league's most praised goalies within his first pro year. Frk and Pulkinnen were also deemed by some to be pure offensive players with too many flaws for further tasks, but proved their willingness to work on their shortcomings. Athanasiou became constantly better this season and may have shed his previous "puck-hog" label with his strong playoff performance.
Therefore I am positive that each of the above-mentioned players would be drafted earlier now than they actually did. Add to this prospects like Järnkrok, Ouellet and Sproul, who also made huge steps forward after they have been drafted (yet were never said to have any detrimental attitude issues). Sheahan did not show this much progress, but he responded to the alcohol incident with a solid AHL season.
While all these players certainly are different than Mantha, I take their development as an indicater that the Red Wings staff is able to deal with different characters and different backgrounds. The only counter-example which was cited here, namely Axelsson, is not fully comparable to Mantha, because the latter will not be considered a star player in his home country and able to earn a nice salary, unless he progresses within the Red Wings system.
Gruß,
BSHH