Not a good weekend for some of the Pool B's good for others:
Good:
Conc (ILL)--Beat MSOE once
St. Scholastica sweeps DH vs Bethany Luth.
Bad:
Rockford--Loses 2 against Benedictine & 1 to U of Chicago
Beats up on Carthage Really hurts Carthage in Pool C
Ithaca--Loss @ Oneonta Probably can afford the losses
Loss vs PS-Behrend
Win vs York (Pa)
Ugly:
St. Johns Fischer--Loses 4 in a row to RIT (ouch)
Juniata--Split with U of Scranton also ugly
Loss vs Catholic
Salisbury, Chapman, Piedmont: No Worries they're in...
Emory is playing the waiting game.
Great assessment! +1 
Before you classify Conc-Il as having a "good" week, you will need to take into account while they did beat MSOE , they also lost to them, and MSOE is not a good team to say the least.
My guess is that there will be one contender for Pool B/C to come out of the Nathcon, that would be whomever wins the post season tourney, Rockford and Benendictine are co regular season champions, If either of them or Conc-Chi wins out in the tourney that will be their contender, Rockford and Conc-Chi would be the strongest contender if they win but they would basically eliminate themselves if they do not. I don't see Marian going even if they win, if Benedictine wins they will have a shot but perhaps less so than Rock or Conc-Chi.
Whether that contender makes the cut or not is open to debate, I would tend to think that they will make it, due to 1.) the winner will be pretty much equal with other contenders in the applicable criteria, 2.) the down year of Washington Univ in St. Louis leaves an extra spot in the Central Region (yes I know they can move teams from region to region but there does seem to be a slight reluctance to do so and that may favor a Nathcon team) 3.) I think the ncaa will find it hard to let a 12 school member conference get shut out two years in a row, especially as it would be a close call, last year champions was right there but did not make it, to have another champion with solid enough credentials get shut out would probably cause a problem on some level, there has already been some uproar about another sport.
That all being said, Nathcon does alot of things that don't quite make sense, they could have organized their conference in such a way as to not have to wait 2 years for the AQ from what I've been told (it is basically the merger of a couple conferences, which I believe had AQs). Also the typical weekend sees teams playing a minimum of 36 conference innings, 9 inning double headers saturday and sunday, then throw in some inevitable rainouts and you end up playing 54, 72, or 90 conference innings a week then try to beat some of the non conference regional opponents on your off day. What do you need a 20 man pitching staff to do that? In comparison the CCIW plays 2-9's and 1-7 a week, much easy on the staffs and their teams ability to win non conference games. Then you move on to the upcoming tourney, they squeeze a 4 team double elimination into two days, Friday you have 1-4 and 2-3, then wg1-wg2, then lg1-lg2, then Saturday they make the 2 remaining teams play at 9 am, after playing 2 games the previous day and then the winner of that needs to beat the 2-0 team twice thereby winning 3 straight 9 inning games on a Saturday, who comes up with this stuff a bean counter?
I'll post this also on the Natcon board as most of it seems to be conference issues.