"I didn't give the record that much thought last year," Callahan said. "We needed a tailback. I've played tailback since the seventh grade. There was no one else available."
Callahan invested plenty of time during the summer in his bid to lead Lumen Christi to playoff contention this year.
"We lifted three days a week during the summer," Callahan said. "I think I'm stronger this season. Over the summer, I concentrated more on weight lifting."
As a running back, Callahan maintains various rushing skills.
"I think I can make better cuts this year," he said.
Lumen Christi is off to a 1-2 start but has lost to outstanding opponents, including to Detroit St. Martin dePorres, which stunned the state's top ranked team, Detroit Catholic Central, 33-27 Saturday
"We've seen some tough competition," Callahan said. "I don't think I'm where I want to be yet."
With six regular-season games to play, Callahan still has high hopes for a team that returned half of its starters from last year.
"We need to be aggressive on both sides of the football," Callahan said. "Our defense has stepped it up. On offense, we had to replace a lot on the defensive line. We especially have to get more aggressive offensively. We only had one returning lineman from last year. That makes a big difference."
"But we have a lot of potential. Our offensive line is big. We still have players who know what they're doing for the most part."
On his college future, Callahan is considering the possibilities of Eastern Michigan in the Mid-American Conference or defending NCAA Division II champion Grand Valley.
But he'll wait on selecting a college until he completes his high school career. Despite the slow start, Callahan is still hopeful of a playoff spot.
"When we lost to DePorres, we learned from our mistakes and hopefully will make sure we don't repeat them," he said.