The Miami Heat roster still looks formidable in spite the loss of their superstar for the past four years, LeBron James. 

Right after James' departure and return to Cleveland, Heat president Pat Riley immediately weaved his magic and signed a number of key acquisitions for Miami. 

And even with this team, some would still argue that the Heat is still a contender for the Eastern Conference Finals, or even the NBA Finals. 

However, there will certainly be setbacks and problems, and these four would surely take away Miami's dream of returning to the Finals for the fourth consecutive time. 

4. Slow Adjustment Phase For New Heat Players

Miami now has a total of 5 new players in its roster, and three of those certainly has the chance to crack the starting lineup. However, if these players would not be able to adjust right away in coach Erik Spoelstra's gameplay, Miami's season could be over even before the real battle begins. 

3. Stronger Eastern Conference Teams

This year, the East is significantly stronger than ever before with key acquisitions for Cleveland and Chicago. Interestingly, the Heat have rivalries against both teams, especially against the Cavs. While Indiana will surely plummet all the way down the ranks after losing two key players, most of the teams in the East can push even harder to reach the higher part of the standings. 

2. Wade Gets Injured

For some time now, there has been issues about Wade's health, probably due to his reckless play at the beginning of his career. Despite his fairly young 32 years of age, Wade has been playing in the NBA since leaving college back in 2003, which means he has been playing in the league for 12 years coming into this season. If he gets injured and misses more than 10 games, the Heat's chances are doomed to fail. 

1. Bosh Does Not Deliver

Since Bosh's signing of his max contract offer by the Heat, there have been questions if he can bring back the old Raptor in him. Back in the day when he was the primary scoring option for Toronto, Bosh averaged almost 25 points and 11 boards a game. The problem is if Bosh goes way short of those numbers, which means the hole left by LeBron will still be wide open.