Disclaimer* this is not my prediction, I have no idea how the season will unfold.Agree with you on this point. We have to win in the A-10 - period. If we are successful in conference - then post opportunities will be there. But we need to take care of business during conference play. A-10 is looking interesting this year - so it will be tough.
But Mason has the opportunity to be an at Large. Lets say they finish top 3 in the A-10. 25 win season with key wins over UMD, TCU, vcu, UMBC, Nebraska. I would think that's enough to get a bid.
I repeat that's not prediction, but I think the schedule is good enough to give your self an opportunity for a tourney bid.