Getty Images/Ringer illustration Philadelphia and Milwaukee are both facing early first-round exits and critical decisions this summer. What changes must be made in order for them to contend again? The Milwaukee Bucks and Philadelphia 76ers were popular preseason picks to make the NBA Finals, but on Sunday both teams fell down 3-1 in their respective first-round series. Perhaps we'll witness a miracle comeback, but odds are that both are headed for early postseason exits. With two Eastern Conference powerhouses facing elimination, let's examine the biggest question facing both teams this summer. What needs to change in Philly? Joel Embiid didn't sit for even a second in the second half of the Sixers' Game 4 loss to the New York Knicks on Sunday, and by the end of it, he was completely drained. Embiid, who played nearly 44 minutes, appeared lethargic while protecting the rim, seeking rebounds, and finishing the types of shots he usually makes with ease. A tapped-out Embiid is undoubtedly one of the reasons the Sixers lost Sunday. But not the reason. He isn't playing like his peak self after he missed two months with a knee injury and came back only at the end of the regular season....