Manager Luke Parsons is aiming to get consistency from FA Vase hat-trick man Josh Randall this season. Randall’s first-half treble helped the Blues beat AFC Mansfield 4-3 in the first qualifying round last weekend. He’s a big threat on his day and it’s a case of bringing the best out of him on a regular basis. “He’s a really good player,” said Parsons, whose side were due to host Harrowby in United Counties Premier Division North tonight. “Sometimes he doesn’t believe in himself. “There’s things he’s got to improve on but we’re seeing small steps in his development. “On his day, no one can liv…