Clemson faces its stiffest challenge of the young season on Friday, as the Tigers square off with No. 25 Iowa in the Emerald Coast Classic in Niceville, Fla.The Tigers (4-1) come in fresh off a 72-41 romp of Loyola-Maryland, giving Brad Brownell’s team three straight wins. The head coach has been mostly pleased with how the Tigers have started the season, but he’s still looking for a complete game.”We’ve won the last three,” Brownell said. “I think we’ve played some good basketball at times, but we haven’t put together for 40 minutes yet.”I’m proud of the way our guys have bounced back. Won a couple of good games here at home just to, you know, get better, which we needed to do. Needed game experience for some guys. … We’re a new team still finding our way.”Through the first five games, the Tigers have been paced by Chase Hunter. The junior guard averages a team-high 16.2 points and has been red-hot from the perimeter, shooting 68.4 percent from beyond the arc.Clemson is still waiting on veteran big man PJ Hall to round into form, though, as the junior forward is still battling back from an offseason knee injury. Hall has shown flashes of his old self at times and comes in averaging 10.5 points per game.”I just think it’s really hard,” Brownell said of Hall. “Because our last visuals of him are playing unbelievably at the end of the season and his expectations are really high. And I think it’s hard on him emotionally. I think he wants to play so well. There’s times he’s rushing himself a little bit. He just hasn’t had as many reps, right, and it’s normal.”The Hawkeyes (4-0) score in bunches. Fran McCaffery’s team is averaging 96 points per contest and shooting 39.8 percent from 3-point range. Its average margin of victory has been 31 points.Despite the hot start, which includes an 83-67 win over Seton Hall, McCaffery’s message has been simple. Take it one game at a time.