there is but a small amount of hope Havoc....
This year the SEC is down (comparing of course to past years) as is the Big 12, also, Arizona St is banned from post season consideration and frankly, it does appear as though other conferences are down some also. So, with that in mind, with a series win over Purdue and "all" remaining series. Also a run to at least the championship game in the conference tourney and one does have hope. However small the hope might be, its still hope. Looking now at the Northwestern series, how large of a loss was that?
Havoc--I'm not saying this is a lock by any stretch. Hell, even with a series loss to Purdue, as long as it's a tight, good series and DoNU gets north of 40 wins the rest of the way (including the Tourney) and doesn't finish lower than second in the conference and tourney, we'll get a hard look from the committee at a minimum.
Remember, we're one of the few BCS schools that's made money from NCAA Baseball, and our fan support and facilities are second to none. Yes, our RPI may be high, and we may have some bad losses (Northwestern), but we have some good wins (Illinois, K-State, Cal).
Also, politics may play into this--with all of the discussion from the B1G about how Northern schools are at a disadvantage and the deck is stacked against their schools (e.g. RPI calculation, scheduling, season length), a 40+ win brand name, ticket-selling program not getting a NCAA tourney bid won't sit well and will validate some of the bellyaching the B1G schools have done.
With a sport that still does its hosting at home sites of NCAA programs (instead of neutral sites as in Basketball), name cache and butts in seats make a difference still--perhaps enough to compensate for the weak-sauce league the B1G is currently (save for Purdue and Michigan State), but only if our kids do their bit.