For 15 years, Main Line native Mike Mayock analyzed NFL draft prospects for our readers.

But in December, he left the NFL Network to become general manager of the Oakland Raiders. Of course, he couldn’t offer his insight to our readers anymore. Who would replace him?

Meet Ben Fennell, a Drexel grad from the Poconos who worked beside Mayock for the last four drafts. He’s an Emmy Award-winning producer, editor and researcher across several media platforms: NFL Network, ESPN college football, The Athletic and the Eagles.

He’s in his first year working with NFLN’s new senior draft analyst, Daniel Jeremiah.

Fennell helped us preview the draft by looking at 12 position groups, and breaking them down with the best, riser and sleeper in each one. Take a look:

Quarterbacks

Kyler Murray.
Luis Sinco / MCT
Kyler Murray.

Heisman winner Kyler Murray is Fennell’s top quarterback in the draft, but don’t sleep on his sleeper: a friend of Eagles QB Carson Wentz. Read more.

Running backs

Miles Sanders.
ABBY DREY / TNS
Miles Sanders.

Penn State’s Miles Sanders is rising on draft boards and might go in the second round. Read more of Fennell’s analysis on running backs here.

Edge rushers

Nick Bosa.
Jay LaPrete / AP
Nick Bosa.

Nick Bosa is expected to go in the first five picks. Here’s the breakdown on edge rushers in the draft.

Speed and size receivers

Hakeem Butler.
Charlie Neibergall / AP
Hakeem Butler.

Iowa State’s Hakeem Butler is a big receiver who ran fast at the combine. Take a look at six prospects -- three with speed, three with size -- among receivers in the draft.

Tight ends

T.J. Hockenson.
Darron Cummings / Associated Press
T.J. Hockenson.

Could Iowa’s T.J. Hockenson be the next Rob Gronkowski? A breakdown of the tight ends.

Outside and nickel cornerbacks

Chauncey Gardner-Johnson.
Phelan M. Ebenhack / AP
Chauncey Gardner-Johnson.

Safeties

Deionte Thompson.
Butch Dill / AP
Deionte Thompson.

Linebackers

Devin Bush.
Carlos Osorio / AP
Devin Bush.

Devin Bush just edges out LSU’s Devin White as the top linebacker in the draft. But what about a riser, or a sleeper? See more here.

Offensive tackles

Andre Dillard.
Young Kwak / AP
Andre Dillard.

Andre Dillard should probably be a Day 1 starter. Who else could make an impact among offensive tackles? See more here.

Interior defensive line

Quinnen Williams.
Michael Woods / AP
Quinnen Williams.

Find out which players Ben Fennell is impressed by among interior defensive linemen.

Interior offensive line

Garrett Bradbury.
Michael Conroy / AP
Garrett Bradbury.

Garrett Bradbury will likely go within the first 25 picks on Thursday. See other interior offensive-line prospects here.

Gadget players

Deebo Samuel.
AP
Deebo Samuel.

Deebo Samuel, out of South Carolina, is an example of a player with a lot of different skill sets. See other gadget-player prospects here.