This idea didn’t work out last time, but Sheldon Keefe is giving it another shot. On Monday at an off-day practice, the Toronto Maple Leafs ’ head coach shook up his No. 1 line, tabbing Nick Ritchie, Auston Matthews and Mitch Marner as the top trio. “Obviously Ritchie, Auston and Mitch was what we had started with [earlier this season], and it didn’t go well,” Keefe told reporters on Monday, after practice. The “didn’t go well” part is one fans know quite well. “I think that all three players, frankly, are in a different place right now with their game than where they were, so we wanted to give it another run,” Keefe continued. That second run comes Tuesday night, when the Leafs, winners of three straight, take on the Predators. There’s a natural bit of head-scratching about having Ritchie back on to the top line. The 25-year-old has two assists in 16 games this season, and no goals on 24 shots on net. His linemates, Matthews and Marner, have a combined 26 points this season — t...