Sparano was extended, it didn't guarantee he got another year. Its just What Ross seems to prefer to do, so that he doesn't get a lame duck employee, especially one with decision making power.
My honest belief is irelands job is based on making playoffs, which I think is fair.
As much as it may surprise people but a GM's job isn't solely tied to playoffs. He must also manage good cap structure, which Ireland has. He must put good players on the field for the coach to work with, and yes we have improved over last year. If the record is trending in the right direction with those two elements then the gm will usually stay playoffs or not. Throw in we are in only year two of a first time head coach and you have a really good arguement from a business, owners standpoint. I doubt Ross has such a hard lined approach to Ireland's job as playoffs. Successful people just don't think like that.