If your team is coming off a tough season, and has cap space available, free agency can be the easiest way to turn things around.

LeBron James has swtiched teams twice and the best free agency pick-up from the summer, Kevin Durant, has the Golden State Warriors as the title favorites this season.

But free agency doesn't come without its risks, as five teams found out last summer.

Here are the five biggest busts from the free agency period last season:

5. BIZMACK BIYOMBO, ORLANDO

You could see this one coming a mile away.

After a great playoff run for the Toronto Raptors, Biyombo settled back in to his regular season career numbers with the Magic.

Starring for the Raptors last season's playoffs, the big man from the Congo had a game with 26 rebounds and four blocked shots in a win aganist the would-be champion Cleveland Cavaliers. That helped earn Biyombo a deal worth four years, $72 million.

This year, Biyombo is getting 6.0 points, 7.1 rebounds and 1.1 blocks.

4. RAJON RONDO, CHICAGO

Despite some nice play as of late, you can't just forget the beginning of the season.

That's when the veteran point guard brought some of the off-field issues that have plagued him in recent years.

There was an Instagram spat where he called out veteran teammates including Dwyane Wade and Jimmy Butler, and he was benched at times, hurt at others.

Rondo signed a two-year pact for $28 million this season and has averaged 7.8 points per game, the worst output since his rookie season. His 6.7 assists per game is also among the worst of his run.

3. TIMOFEY MOZGOV AND LUOL DENG, L.A. LAKERS

It's hard to separate this package deal of bad contracts, as Mozgov and Deng were brought over to inject some veteran leadership into a young team.

And it came at a steep price: four years, $64 million for Mozgov and four years, $72 million for Deng.

The results haven't worked out: Deng is getting career lows in points (7.6 per game) and minutes (26.5), and Mozgov has been ordinary in 20.4 minutes per game.

Plus, the team is 23-55.

2. CHANDLER PARSONS, MEMPHIS

It's hard to slam a guy for an injury, but Parsons doesn't seem to really fit in with what coach David Fizdale is doing in Memphis.

A knee injury has Parsons out for the season, but at four years, $94 million, the production wasn't lining up anyways.

In 32 games, Parsons averaged 6.2 points and 2.5 rebounds per game. The worst part: His 3-point percentage, which was supposed to be a strength but has resulted in a 26.9 percent mark from long rage.

1. JOAKIM NOAH, NEW YORK

The breakdown of Noah's career has been swift and sad.

The former Chicago Bulls fan favorite has been hit with injuries in recent years, but that didn't stop the New York Knicks from Dolan-ing out a deal for four years and $72 million.

Noah disappointed in 46 games, getting 5.0 points and 8.7 rebounds per game. His scoring output is the second lowest of his career, only better than last year.

Now, Noah has been suspended 20 games for getting caught using performance enhacing drugs.