RICHMOND, Ky. — Eastern Kentucky’s chances of upsetting second-seeded Kansas in Friday’s South Region game depend on whether its seasoned, guard-heavy lineup can continue forcing mistakes.The 15th-seeded Colonels (24-9) will need everything clicking to beat the Jayhawks (24-9) in St. Louis and earn their first tournament victory in eight tries. Guard Glenn Cosey and five fellow seniors must slow down a Kansas offense featuring heralded freshman Andrew Wiggins and maintain the offensive consistency that helped clinch the Ohio Valley Conference tournament title.Scoring isn’t an issue for EKU, which has matched or exceeded its 79-points-per-game average five times while winning seven straight. But beating the heavily-favored Jayhawks could require at least that many points along with the Colonels’ best defensive effort this season in their first tournament appearance since 2007.“Teams aren’t going to have a problem with our length because we’re not as long as other teams,” said Cosey, EKU’s top scorer at 18.8 points per contest.“But our pressure and our style of play is different.