After their disappointing loss to the Green Bay Packers Youth Marcus Murphy Jersey , the Buffalo Bills look to right the ship at home against the Tennessee Titans. . They are 3-1 with big division wins over the Jacksonville Jaguars and Houston Texans. Here are three crucial items to watch for as the Bills look to defend their dirt. Will the Bills be able to score?After the shutout in Green Bay, the Bills now rank 31st in the NFL in scoring. On the other sideline, the Titans have allowed the 7th fewest points in the league. It appears that former New England Patriots player and coach Youth Dion Dawkins Jersey , and rookie Titans head coach, Mike Vrabel has his defense humming. Can the offensive line get it together?The Bills’ offensive line is ranked 32nd in the league after their week four debacle. The coaches have only made one change to the line this season. They replaced Ryan Groy with Russell Bodine as the starting center in the lead up to the game against the Minnesota Vikings. Will they make any more changes after a brutal game in Green Bay?Injuries in the secondaryThe Bills’ best defensive player, Micah Hyde, left the Packers game in the first quarter and did not return. Hyde and his backup, Rafael Bush Youth Corey Bojorquez Jersey , did not participate in practice on Wednesday. Buffalo brought in free agent CB Dontae Johnson to fill the void that may be left by one or both safeties. Levi Wallace had a heck of a year. As an undrafted free agent, the rookie landed with the Buffalo Bills where he fell to the practice squad with a cornerback group having decent depth to start the year. In Week two, Vontae Davis retired at halftime which eventually led to Phillip Gaines taking over opposite Tre’Davious White. Phillip Gaines had a bit of an issue with defensive pass interference (among other concerns) and was cut after a particularly bad outing against Da Bears. With a suddenly depleted defensive back roster, Wallace got the call to the active squad and never looked back. Let’s see how he did. Play 1This is Levi Wallace’s first drive of his first regular season NFL action. It’s pretty impressive that he diagnoses the play, directs one of the budding stars in Matt Milano Womens Tre'Davious White Jersey , and then attacks the perfect receiver for the play call. Not every pre-snap routine is top notch like this one, but Wallace is constantly communicating. For his part of the play itself, he drives as soon as he sees Quincy Enunwa turn his head. The pass is deflected, but even had it been caught this play is dead in the water thanks to Wallace. Play 2That isn’t to say he won’t make some mistakes. Wallace is so fixated on his man that he essentially tackles Matt Milano. As a result, some options open up for the Jets Womens Josh Allen Jersey , though luckily they didn’t capitalize. Play 3Wallace’s aggressive nature can be a problem as well. Here that combines with good ol’ fashioned inexperience. Not realizing the receiver is coming in to block, Levi Wallace bites inside. By the time Wallace realizes what’s up the play is lost. Play 4More rookie eagerness and inexperience prevents a splash play in this clip. Wallace skirts the edge quite well and is in position to make a tackle five or six yards behind the line of scrimmage. He takes a bad angle to the inside and the running back gets outside of Wallace. The run still goes down as a loss, but this is a play Levi Wallace likely wanted a do-over on. Play 5Let’s take a look at pass coverage. Wallace wasn’t tested as much as you might expect as an undrafted rookie. He often held up well, with solid instincts and change of direction ability to stay with his man. Wallace is in good position here thanks to good anticipation on the route. Play 6And here’s a big reason why Wallace held up well in the final stretch of games. The ability to flip his hips leads to an easier time changing direction while maintaining speed. Play 7To start with the bad, Wallace nearly always turns sideways immediately at the snap rather than backpedal. Sometimes Wallace even telegraphs this pre-snap. This is something that can be taken advantage of by shiftier receivers. To close with the good Youth Shaq Lawson Jersey , Levi Wallace is like glue on this route, even navigating the hesitation move beautifully. SummaryLevi Wallace is a pleasant surprise, becoming the rare case where the depth players work out better than the planned starter. Wallace shows good awareness that unfortunately isn’talways matched by his experience and ability. There are a few things a clever team could exploit in Wallace’s game but several other aspects that make it hard to play against him. Wallace has already outplayed expectations, but look for him to make a bigger impression in year two.