Anytime you change head coaches, let alone entire coaching staffs, questions abound during the offseason. The Oakland Raiders, who went 3-13 last season, overhauled the coaching staff and several position groups this offseason. From free agency to the NFL Draft, the roster is now stocked with new players in hopes of making that championship run.
The Silver and Black open Training Camp 2015 this week at their Napa Valley Training Complex and many questions will need to be answered heading into the regular season. As the Raiders get ready to take the field for their first training camp practice Friday, let's take a look at some of the storylines we'll be tracking.
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- Bill Musgrave's Offense**: New offensive coordinator Bill Musgrave brings a wealth of knowledge and experience. He comes over from the Philadelphia Eagles and Chip Kelly's up-tempo "run-and-shoot"-style attack. What will he bring, how will the pieces fit, how quickly will it come together?
2. Offensive Line: This will be one of the most watched position groups of training camp. Center Rodney Hudson comes over from the Kansas City Chiefs and replaces Stefen Wisniewski, Austin Howard moves to right tackle. Who plays right guard? Will someone beat Howard out for the right tackle spot? Donald Penn and Gabe Jackson appear secure on the left side. Who will be the starting five when camp shakes out?
3. Starting Cornerbacks: DJ Hayden and TJ Carrie look to claim the starting spots. This is a very young and inexperienced group with a lot of talent and athleticism. Hayden, Carrie, Keith McGill and Neiko Thorpe showed flashes last season. Who starts? Who makes the team?
4. Mack Attack: Media and fans alike have been asking where Khalil Mack will line up. He has reportedly bulked up a bit and speculation is that he'll play some defensive end. After recording just four sacks in his rookie season, much will be expected from the second-year man from the University of Buffalo.
5. Running Game: Darren McFadden is off to Dallas, Maurice Jones-Drew retired. Latavius Murray tantalized the Raider Nation last season, can he be the bell cow? Where does Trent Richardson fit? Roy Helu, Jr., joins the mix coming over from Washington. Taiwan Jones has moved back to running back – can he be more than a special teams player? The Raiders must improve the running game after finishing last in the NFL in yards per game a year ago.
Check out who's currently on the roster for the Oakland Raiders.

Linebacker Lorenzo Alexander (56)

S Nate Allen

LB Ray-Ray Armstrong

S Larry Asante

DE Denico Autry

LB Neiron Ball

OL Khalif Barnes

G Tony Bergstrom

WR Brice Butler

QB Derek Carr

CB TJ Carrie

WR Amari Cooper

LS Jon Condo

WR Michael Crabtree

DE Mario Edwards Jr.

DT Justin Ellis

G Jon Feliciano

CB DJ Hayden

LB Ben Heeney

RB Roy Helu, Jr.

WR Andre Holmes

TE Gabe Holmes

OL Austin Howard

C Rodney Hudson

G Gabe Jackson

K Sebastian Janikowski

RB Taiwan Jones

P Marquette King

LB Curtis Lofton

LB Khalil Mack

DE Benson Mayowa

T Matt McCants

CB Dexter McDonald

DT Stacy McGee

CB Keith McGill

QB Matt McGloin

RB Latavius Murray

FB Jamize Olawale

T Donald Penn

FB Marcel Reece

TE Mychal Rivera

WR Seth Roberts

TE Lee Smith

LB Malcolm Smith

WR Rod Streater

CB Neiko Thorpe

DE Justin Tuck

TE Clive Walford

T J'Marcus Webb

DT Dan Williams

FS Charles Woodson