By Mukala Kabongo NEFJ Staff ANDOVER - The Merrimack Valley Conference was the latest to host a football showcase for their student athletes after last week's extremely successful ISL and Catholic Conference showcases. On a cloudy Wednesday evening at Andover high school over 100 student athletes showcased the talent in the Merrimack Valley Conference which is considered one of the better conferences in the state. “It’s just good to see...