Frank Lampard's temporary reign at Chelsea is a "risky gamble" but could well pay off for the beleaguered club, believes Rafael Benitez.Former Blues head coach Lampard returned to his former post on a short-term basis on April 6 following Graham Potter's dismissal.Yet with three losses from his first three games in charge, it has been far from a glowing reunion for the club's record goalscorer.Benitez, who led Chelsea...