My whole point was not how a position may affect any games result, but that whatever is needed to be successful in the season is the same for the tourney. Purdue has already played good teams away and on a neutral court that are as good as many teams that will be in the 68 or so teams. There are teams built for success that happen to play well in the season and tourney. Those characteristics don't change. Now PGs in particular have the ball in their hands and thus eliminate needing to give it up to make a play for a win...and if after 60 possessions played and no separation then that is an advantage...and like other effective players... important before the last possession.
Playing different ways is more of an offensive consideration than a defensive one. Most teams do what they do on D and you can't make them change what they do. However, what they do on D may make adjustments on O and as always you like versatile players even if the D didn't change inside a game or by different teams...all due to adjusting to the opposition if needed and not important if they are adjusting to you. There is nothing a team will do that Purdue players have not seen at numerous times through their playing years.
What changes are the physical and basketball skills being more athletic and talented, but Match-ups, zones, man, man presses, various zone presses, run and jump and hybrids of all those are minor tweaks to fundamental understandings. There is nothing really new under the sun...just tweaks and adjustments. People say look at Maryland and what they are doing in the half as the clock winds down and they are in obvious man D...Crean was doing that his last year or two at IU. Every strength and weakness a team has goes with them into the tourney and depending on who they are playing that may or may not be an issue. There are no surprises...just execution at some level against an opponent that is a bit different than the last.
To be successful in the tourney is to need what you need during the season as well. The direction as a result may lead to different things, but what caused the result hasn't changed...just the last game...maybe losing a conference championship and so on as the results, but the lack of inside play, perimeter play and so on causes problems during the season and in the tourney.
I think there is as much if not more powerful variable in how the officials from game to game and from different positions inside a given game ,view the game, because it is really...really...really hard to prepare for that, should it happen...and that may be a big plus for the 1,2 and 3s.