Here's how I see it:
Tennessee has a batting average of .318, and as a team that's 2nd in the SEC in overall batting average. They don't have a ton of power in their lineup, their best long ball hitter is Gregg with 14 home runs which is more than double that of the next player on the list with 6. They have some good slappers that like to put pressure on infield defenses. Overall they have 460 hits on the season with only 127 going anything more than a single and they only have 39 home runs on the year (compared to A&M's 56). By contrast A&M has only given up 13 home runs all year which is phenomenal, lead the SEC in doubles allowed with only 21 and have yet to give up a triple all season, and we field at a .980 clip (which is a tad misleading because it was much higher but we've recently committed a few errors more than we did to start off the year). On paper all of that should favor the Aggies, but Tennessee will be at home which will help their hitters, and if they're disciplined and lay off the rise ball and if the ump's strike zone is tight it could get hairy. Show and Smith are up and down sometimes and have struggled with locating pitches at times.
With all of that said I think it's reasonable to think that A&M should be able to limit Tennessee scoring-wise and keep the game close.
As far as the offense goes, Vidales absolutely needs to remain hot. She had Tennessee's number in that last series and it would help if Milligan could continue to find her way on base like she has been with Vidales behind her. One thing I've noticed is that Vidales seems to heat up when the others cool off and vice-versa. If Sartain can get back into the her groove, those two make a toxic 1-2 punch for opponents.
Something to think about: Texas A&M has had very few 7-6 type final scores this season. It's either been them blowing teams out or winning 3-1 or the like. The only game they won like that this year was early on when they beat SFA 8-7, but that was an 8-2 game going into the 7th and before a pitching meltdown. They lost 6-8 to Tennesse and 9-11 to ULL, but rallied in both games after being down. They haven't had a game all year where they just went toe to toe with an opponent and slugged it out and outscored them. It may very well come down to a game like that this weekend, where they may give up 7 runs and may have to produce 8 to win it. We'll see if that happens.