I've watched UD play 4 times on TV (URI, Elon, @ UNH, VU). From that & looking at their stats:
UD Offense
-#85 rSr TE Charles Scarff (6'6"/270) made 1st team on the just released All CAA. A HUGE target. They throw to him a lot.
-#7 Sr RB Kani Kane (6'0"/240) is a bruiser. A late fumble in FG range vs URI cost them that game. Only played one series vs VU, 0 carries. Commentators were speculating whether he was dealing with an injury. Didn't make the just released All CAA.
The UD offense does a lot of 2 TE set, ground and pound. If Kane can't go they become a little less effective at that. The back they started vs VU, and who got the bulk of the carries, is #33 Soph RB Dejoun Lee (5'7"/185). He's got a burst, but he isn't a power back like the 240 lb Kane. Their passing game is mediocre. If Kehoe can't go, not too worried about that. #3 converted rSr QB Joe Walker (3rd team All CAA) is probably their best WR). Again their TE is a HUGE target.
UD Defense:
Their defense was suppose to be very good, but they are only 10th CAA total defense. Their LBs are very good, but the rest of their defense not such much from what I've seen.
Their DL lost their 2 best DL from last year (both All CAA, 1 drafted), and the returning starter, #99 Sr Cam Kitchen, who made 3rd team on the just released All CAA, was injured vs VU. It didn't look good.
Their LBs in their 3-4 are good. Big. If they have any weakness they don't appear as quick.
-#9 Sr Troy Reeder (6'3"/245), 2016 PSU transfer. 3rd year starter, pre season All American, on the Buchanan watch list. Named 1st team on the just released All CAA. Leads the CAA in tackles.
-#5 Gr LB Charles Bell (6'0"/230) 3rd year starter, was a 2016 1st team All CAA at LB. Season ending injury last season vs JMU. Didn't make the just released All CAA.
https://bluehens.com/roster.aspx?rp_id=8902
-#9 rSo Colby Reeder (6'3"/240), 2nd year starter.
-#7 Sr Ray Jones (6'0"/205), 4 yr year starter (last 3 in the secondary).
From what I've seen, their secondary appears mediocre. Their 2 time 1st team All CAA Safety #23 Sr Nassir Adderly is very good.