I hesitate in saying this knowing the uproar this is likely to cause, but the reports I am hearing is that the Astros are using the LF position only from a media and a "if Bagwell can't play" perspective.
The real story supposedly is that if they sign Nomar, he will play everyday (or close to it) either as LF if Bagwell cannot go, or as SS if he can (moving Everett to the bench/late inning defensive replacement role).
If they do sign him and this is true, look for Nomar to be the #2 hitter in the line-up too. From a friend of mine who is a BoSox fan, he thinks Nomar's downfall as a hitter/player occured when the Sox asked him to be a #3/4 hitter for them instead of his table-setter role. So if asked to be a table-setter again he might flourish again at the plate.
And for those that talk about how poor the offense was, it wasn't because they had a black-hole at the #7 and 8 slots, it was because the #1 and #2 hitters didn't get on-base for the 3/4 hitters in the line-up enough.