Senior wide receivers Tyrone Ali (6-1, 170) and Sy Rivera (5-10, 180) and junior tight end Teddy Crayton (6-0, 205) hope to emerge in the passing game.
"He's a good quarterback for our offense," Hambor said.
Guard Brandon Dixon (5-10, 195) had a banner season on the offensive line last year where he earned All-County First Team and All-State Second Team honors.
Mason Klompus (6-1, 255) also returns to an offensive line that features senior veteran T.J. Henry (6-1, 225), junior Julian Robinson (6-2, 245), sophomore Zach Delker (5-10, 220) and freshman Jake Faircloth (5-9, 190).
Singletary is the top returning defender (73 tackles) from a defense which graduated talented ends Sean Lipscomb (90 tackles) and Julian Jones (85 tackles).
That defense produced eight returns for touchdowns (6 interceptions) and Hambor hopes this year's group can be just as explosive.
Henry will start at one defensive end slot with the other candidate up for grabs.
Defensive back Lane and linebackers Singletary and Hylton are fixtures on the defense.
Robinson and seniors Darius Wiiliams (5-10, 215) and Cheldon Simon (6-0, 220) should bolster the defensive line while senior Devin Ray (6-0, 235) could bolster the linebacking corps.
The defensive backfield has a host of prospects in seniors Keon Webb (5-4, 150), Andre Henderson (5-5, 145) and Nigel Minter (5-6, 150) and Delray Ragland (5-10, 160), a junior transfer from Woodlawn High.
Long snapper Nathan Hines, a senior, is back and sophomore Garrett Wack takes over kicking and punting duties.
Hambor knows his team will be targets for some of the powerhouse programs the Comets dominated last year.
"If we do well enough we could have a playoff game at home," Hambor said. "That's really up to us."
Mount St. Joseph
2011 record: 3-6
First game: Aug. 25 vs. Bishop McNamara, 1 p.m.
Offensive starters returning: 5
Defensive starters returning: 4
Fast fact: The 20 combined freshman and sophomores are the most coach Blake Henry has seen in his prep coaching career that spans five years as an assistant at Loyola Blakefield, before taking the head job at Mount St. Joe in 2010.
Outlook: The Gaels have three freshmen and 17 sophomores on varsity, but the key will be how well the veterans keep the team together while the younger talent develops.