Blue Springs South's Blayne Marshall (22) drives to the hoop past Platte County defender Isaac Dittrick, left, in their game in the Grain Valley Invitational Monday. Marshall scored all 10 of his points in the first quarter to help spark the Jaguars to a 55-40 win. Photo Credit: David M. Rainey/Special to The Examiner
By Bill Althausbill.althaus@examiner.net Blue Springs South boys basketball coach Josh Smith did his homework before Monday’s opener in the Grain Valley Invitational against Platte County.…