Week 1 of college football season generally exists for two reasons. One, to find a small-school cream puff you can whup up on without fear of losing, buffing the record and providing what's really a glorified scrimmage to start the year. These games have the added advantage of allowing coaches to work all those pesky 1-game disciplinary suspensions of key players out before anyone with a pulse comes calling. Justice, such as it is, gets served, but only in the form of an Oscar Meyer Lunchable.
Number two, which is generally a bit rarer, is to provide a team with a chance to play a quality non-conference foe. This technique is used by teams with national championship aspirations who want to burnish their strength-of-schedule rating, or by an up-and-comer team without reasonable title hopes for whom a "good loss" is still useful.