The Steelers' recent history of statsandselectionssuggests they willdraft for defense early and often in 2016. But a suming theoffense isfineis a gamble Pittsburghcan't afford.MOCK DRAFT: Steelers help secondaryThe only thing we seem to hear about Pittsburgh is how bad its pa s defense was last season. Itranked 30th with 271.9 pa sing yards allowed per game and gave up 29 pa sing TDs anobvious indication that the Steelers need help at both cornerback and safety, positions they should prioritize in the draft.But the defense really wasn't that bad.Keith Butler's first year ascoordinator was a needed upgrade from the end of the Dick LeBeau era.Butler was more effectivegettingplayersto the quarterback with his le s aggre siveblitzingscheme. Installing zone coverages brought the systemmore in line with coach Mike Tomlin's strong Tampa 2 influence.The results included an increase in sacks,from 33 to 48, andtakeaways,from Nate Stupar Jersey to 22 to 30. Both were the team's highest totals since 2010, when the Steelers'season ended atSuper Bowl XLV.Locking into a defense-heavydraft plantoboost every level isshort-sighted. It doesn't look Cameron Jordan Jersey atthe bigger picture that isasmaller championship window with Ben Roethlisberger.If the Steelers plan to win another titlein the four or sogood years they have left with the quarterback, offense is theirticket.MORE: Roethlisberger's rank among first-round QBsBen Roethlisberger and Antonio Brown (Getty Images)One might think the Steelers areset on offense as theyreturnthe No. 3 total offense andNo. 4 scoring offense. Theyexpect to be healthier, and therefore even better in 2016;close to the 30 points per game Roethlisberger thought theycould average in 2015.But look closer.They have some reali sues that may linger, andthey can't expect an agingRoethlisberger to keep masking those problems.Up front,the Steelerslost Kelvin Beachum at tackle, replaced him with marginal former Bronco Ryan Harris andhave a weakne s with 30-year-old Ramon Foster at leftguard.At wide receiver, without a suspended Martavis Ken Crawley Jersey Bryant,they can't a sumesome combination of Markus Wheaton and Sammie Coates will give them the same pop opposite Antonio Brown that didn't materialize when Wheaton had his early opportunity to break outlast season.At tight end, withoutthe venerable Heath Miller, they can't a sume oft-injuredformer ChargerLadarius Green will be the samereliable, in-line blocker orconsistent receiver.They also have their top tworunning backs, Le'Veon Bell and DeAngelo Williams, coming off season-ending injuries.NFL DRAFT: Safe picks | Risky picks | Steals of the decadePittsburghneedsto break its habit of late.Six of last year's eight picks weredefensive, and the last offensive player ittook in the second round or earlier was Bell in2013.If the defensive back or tackle value isn't available, consideringa receiver at No. 25 LaquonTreadwell, Will Fuller, JoshDoctsonor Cory Coleman is not crazy."Steelers football"once was forged in forminga Steel Curtain-like defense with no holesand complementing it with a power running game.These aren't those Steelers, and those positions aren't what they mustfeed in order to win big now. They succeedwhen the offense, with itsexplosivene s and scoring potential,putsthe defense in position to makebig plays against opponents trying to keep up.Takelast season's playoff Manti Teo Jersey games. The Steelers beat the Bengals, 18-16, and lost the Broncos, 23-16. It was the offense, not the defense, that didn't come through because ofhealth and other i sues.That said, Pittsburgh might want to emulate defense-powered Denver.But with theirchampionship time running out, the Steelers aremuch closer to the offense-elite Patriots,the AFC's otherpower.MORE: Even Steelers have a major draft regretThe Steelers' defense under Butler, after hitting on players like Bud Dupree and Ryan Shazier,requires tweaks. It doesnot needan overhaul.Going "all in" there and leaving alone offensewould be a big mistake.