Naperville (Ill.) North offensive lineman Colin Goebel has position flexibility that could make him one of the more valuable recruits in Iowa's 2013 class. He played in the International Bowl on Tuesday night along with Iowa WR recruit Derrick Willies. | Patrick Gleason ~ For Sun-Times Media

Head of the class

Offense: OL Colin Goebel, 6-4, 275 Naperville (Ill.) North – Legit size. He’s been locked in with Iowa since April. He has potential for guard or tackle. Potential 30-game starter.

Defense: LB Reggie Spearman, 6-2, 219 Simeon (Chicago) High School — Strong, fast, fierce. Iowa likely will start three senior linebackers in 2013. From Rivals.com’s Josh Helmholdt (midwest recruiting analyst): He has shown the ability to rush the passer and play in pass coverage throughout his high school career and at several off-season camps and combines.

Hidden gem

Offense: TE Jon Wisnieski, 6-5, 215 West Des Moines Dowling — Big body with excellent TE skills. Rivals ranks him as the No. 21 TE in the country, so in Rivals’ star ratings, Wisnieski is just under a four-star rating.

Defense: CB Malik Rucker, 6-0, 175 Cooper (New Hope, Minn.) High School – Size for either corner or safety, but will start his career at CB for Iowa. Rucker loves contact and could potentially play a free safety role with fellow defensive back recruit Solomon Warfield fitting in at strong safety.

Immediate impact

Offense: WR Damond Powell, 5-11, 175, Snow College (Ephraim, Utah) – The Toledo, Ohio, native didn’t get the offer he wanted coming out of high school, so he spent a year at Snow College, where he led the nation with 30.0 yards on 41 receptions. Iowa’s passing game never found its way last season. Powell has the quickness to fit into a slot receiver role.

Defense: CB Desmond King, 5-9, 185, Crockett (Detroit, Mich.) High School — He set a Michigan prep record with 29 career interceptions in a Detroit conference that’s known for rushing the football. Not the tallest, not the fastest, but clearly has instinct for the game. Iowa always seems to have a true freshman break through in the secondary.

Big Miss

Offense: OTs Jake Campos and Logan Tuley-Tillman — Campos, a 6-7, 250-pounder, was the Rivals’ top-rated player in the state of Iowa this year, earning four stars out of West Des Moines Valley. He initially committed to Missouri and then flipped to Iowa State. Iowa also tried to get in early on Tuley-Tillman, a 6-7, 307-pounder from Peoria, Ill., but he quickly latched on at Michigan, which pulled down three four-start offensive tackles.

Defense: DE David Kenney (6-2, 250 Pike High School, Indianapolis) – Defensive end will go down as the biggest deficit in this class. Kenney was Iowa’s first commit, but then his dad, David Sr., was hired in a football administrative role at Indiana. So, no Kenney for Iowa. Iowa also held a commitment from safety Delano Hill before Michigan knocked on the Detroit native’s door. They happened to be Iowa’s two four-star recruits.

Iowa’s 2013 walk ons (compiled by HawkeyeReport.com)

K Alden Haffar (5-10, 213) — West Des Moines, IA (Iowa Central CC)

WR Andrew Stone (5-10, 175) — Cedar Falls, IA (Iowa Western CC)

LS Tyler Kluver (6-0, 220) — Marshalltown, IA (Marshalltown HS)

DL Corbin Blythe (6-1, 235) — Williamsburg, IA (Williamsburg HS)

OL Boone Myers (6-5, 255) — Webster City, IA (Webster City HS)

LB Chad Gilson (6-0, 223) — Urbandale, IA (UNI transfer)

LB Drake Kulick (6-2, 205) — Muscatine, IA (Muscatine HS)

WR Connor Keane (6-1, 185) — St. Paul, MN (Cretin-Derham Hall)

S Paul Brown (5-10, 190) — Spirit Lake, IA (Spirit Lake HS)

LB Bo Bower (6-2, 208) — West Branch, IA (West Branch HS)

DE Jake Hulett (6-3, 235) — Springville, IA (Springville HS)

S Kevin Ward (6-1, 185) — New Lenox, ILL (Providence Catholic HS)