Once a baseball player for Saitama High, Keisuke Hatogaya now lives his adult life as a successful, manipulative salesman – that is, until he's framed by his boss, betrayed by his girlfriend, and thrown in jail. But things turn around for Keisuke when he's visited by the coach-turned-principal of Saitama High. In exchange for bailing him out, Keisuke must coach the poorly-performing team and bring them to Koshien within a year, else the team will lose its funding and be shut down. With his unorthodox methods, can Keisuke lead the boys to victory?
Years ago, the East Tokyo United soccer team was a force to be reckoned with, captained by the talented and charismatic Takeshi Tatsumi. But after leaving suddenly to join an amateur team in England, ETU's record and morale quickly plummeted, their meager status kept afloat only by the efforts of new captain Murakoshi. Now, several years have passed and Takeshi is in town once more, this time to bring the team back to victory. But with fans resentful of the man's former departure, clashing personalities on the team and Takeshi's unorthodox and lackadaisical coaching style, ETU's rise to fame won't be easy...
Two baseball manga about an unorthodox coach who's asked to train a team of misfits and bring them to glory - both are quite long-running as well, and will likely hold your interest if you liked one or the other.