The Marion Patriots Activities Network announced Tuesday morning that boys head basketball coach David Clark resigned his position Monday afternoon “to pursue other opportunities.” “We are forever grateful and appreciative of Coach Clark for his efforts in building and promoting our boys basketball program,” Marion athletic director Derek Harrell mentioned in the release. “We know that Coach Clark will be successful in any endeavor he decides to turn his attention to next.” A Little Rock native and a graduate of shuttered J.A. Fair, Clark finished with an impressive 108-37 record in his five seasons with Marion and helped the Patriots…