In 2015 the Griz signed 17 players and had 4 Preferred walk-ons. 10 of those players are still on the 2019 roster. Of corse there are some extenuating issues (Calhoun and Harris) But around 50 percent is about what I would think is the average rate of players making it 4 to 5 years.
Still on the Griz roster (10)
WR (now CB) Justin Calhoun 5'11" 160 (Long Beach Poly HS) Long Beach, CA (3-Star)
WR Cobey Eaton 6'3" 185 (Evergreen HS) Vancouver, WA (2-Star)
TE/Rec Colin Bingham 6'3" 245 (Bigsky HS) Missoula, MT
OL Angel Villanueva 6'4" 290 (Duarte HS) Duarte, CA (2-Star)
OL Dallas Hart 6'5" 295 (Pacifica HS) Cypress, CA
OL Cody Meyer 6'3" 270 (San Marcos HS) San Marcos, CA (Walk-on)
LB Cy Sirmon 6'3" 225 (Wenatchee HS) Wenatchee, WA (3-Star)
LB Dante Olson 6'3" 210 (Cascade Christian HS) Medford, OR
DE Jesse Sims 6'4" 235 (Corvallis HS) Corvallis, MT (3 Star)
S Josh Sandry 6'1" 185 (Bigfork HS) Bigfork, MT
No longer with the team (11)
QB Willy Pflug 5'11" 185 (Sunset HS) Portland, OR
RB Jeremy Calhoun 6'0" 180 (Long Beach Poly HS) Long Beach, CA (3-Star)
WR Donovan Rooks 6'2" 180 (Yuma Catholic HS) Yuma, AZ (2-Star)
WR Holden Ryan 6'2" 210 (BillingsCentral) Billings, MT (2-Star)
WR Dalton Daum 6'1" 180 (Butte High) Butte, MT (2-Star)
OL Jackson McCullough 6'6" 265 (Cathedral Catholic HS) San Diego, CA
DL Mau Ena 6'2" 285 (Vista HS) San Diego, CA
S Jerrin Williams 6'2" 195 (Evergreen HS) Vancouver, WA
MLB Jason Lind 6'0" 240 (Lutheran HS) Orange, CA (Walk-on)
DE Andrew Harris 6'4" 205 (Glacier HS) Kalispell, MT (Walk-on)
K Danny Peoples (Butte Central HS) Butte, MT (Walk-on)
Still on the Griz roster (10)
WR (now CB) Justin Calhoun 5'11" 160 (Long Beach Poly HS) Long Beach, CA (3-Star)
WR Cobey Eaton 6'3" 185 (Evergreen HS) Vancouver, WA (2-Star)
TE/Rec Colin Bingham 6'3" 245 (Bigsky HS) Missoula, MT
OL Angel Villanueva 6'4" 290 (Duarte HS) Duarte, CA (2-Star)
OL Dallas Hart 6'5" 295 (Pacifica HS) Cypress, CA
OL Cody Meyer 6'3" 270 (San Marcos HS) San Marcos, CA (Walk-on)
LB Cy Sirmon 6'3" 225 (Wenatchee HS) Wenatchee, WA (3-Star)
LB Dante Olson 6'3" 210 (Cascade Christian HS) Medford, OR
DE Jesse Sims 6'4" 235 (Corvallis HS) Corvallis, MT (3 Star)
S Josh Sandry 6'1" 185 (Bigfork HS) Bigfork, MT
No longer with the team (11)
QB Willy Pflug 5'11" 185 (Sunset HS) Portland, OR
RB Jeremy Calhoun 6'0" 180 (Long Beach Poly HS) Long Beach, CA (3-Star)
WR Donovan Rooks 6'2" 180 (Yuma Catholic HS) Yuma, AZ (2-Star)
WR Holden Ryan 6'2" 210 (BillingsCentral) Billings, MT (2-Star)
WR Dalton Daum 6'1" 180 (Butte High) Butte, MT (2-Star)
OL Jackson McCullough 6'6" 265 (Cathedral Catholic HS) San Diego, CA
DL Mau Ena 6'2" 285 (Vista HS) San Diego, CA
S Jerrin Williams 6'2" 195 (Evergreen HS) Vancouver, WA
MLB Jason Lind 6'0" 240 (Lutheran HS) Orange, CA (Walk-on)
DE Andrew Harris 6'4" 205 (Glacier HS) Kalispell, MT (Walk-on)
K Danny Peoples (Butte Central HS) Butte, MT (Walk-on)