Take 32 points and 16 rebounds out of the Memphis lineup and the Grizzlies’ roster did not look like it would have anyone Tuesday night to make up for such a gaping hole against the Suns. Meet the replacement front line of Ed Davis and Jon Leuer. The former was the owner of a 20-point, 10-rebound game Tuesday night before the fourth quarter started and the latter scored more against the Suns (23) than he had accumulated all season (20). Take Marc Gasol, the heart, and Zach Randolph, the soul out of what Memphis does and the Grizzlies figured to struggle playing to its identity. Memphis coach Dave Joerger predicted there were rocky times ahead for his team but all it did was rock the Suns 110-91 at FedExForum for Phoenix’s largest blowout loss of the season. While Memphis figured to struggle for offense without its big All-Stars, it was the Suns who searched for offensive rhythm while their defensive decline deepened against Mike Conley Jr. and the replacements. The Suns’ surprising season start was spurred by defense but they now have yielded their first 50-plus percent opponent shooting games in successive contests. Utah shot 51.3 percent in beating the Suns (9-9) on Saturday night and Memphis (9-8) used a 65-point second half to pull away as part of a 54.8 percent shooting effort. It is not the direction they need to be heading into facing the NBA’s top offense tonight at Houston. The Suns have allowed 49.8 percent shooting over the past five games. “The second half was terrible,” Suns coach Jeff Hornacek said. “We’ve got to be able to fight over screens. We’ve got to get after it. We let their guy just shove you in the back. If you don’t have any more fight than that, then what else can you do? “You saw on the other side. They got on our legs. They got inside of us and made it difficult for us. We just weren’t tough enough.” Memphis pounded the Suns inside at times and sliced them up with cutters and dribblers at others for 56 points in the paint, the second most Phoenix had allowed this season. Conley orchestrated it all with neither Eric Bledsoe nor Goran Dragic able to control him. He had 18 points and 14 assists with only two turnovers and got Davis going in place of Randolph, out for an ingrown toenail for a second game. “Mike Conley might have had his foot in the paint every single possession,” Suns small forward P.J. Tucker said. “When you get the ball in the paint that much, it’s tough to stop, especially someone like him who can pass the ball. “A young team isn’t taking advantage of the opportunity given. We came out soft and let Leuer and Davis get comfortable in the paint. They started finishing and then, by the end, everybody got in on it. Once that train gets rolling, it’s hard to stop, especially on the road.”