Ex-Hearts defender Acquah Harrison has urged the club to appoint coach Yaw Preko on a permanent basis. Preko was appointed in an interim capacity after Portuguese Sergio Traguil was demoted to the club's youth team. The Phobians have bee scouring the market looking for a permanent trainer ahead of the new season. But ex-defender Acquah Harrison believes the former Ghana star can do a good job. "It will be a good decision for hearts of oak to maintain Yaw Preko...