Strikeforce middleweight champion Ronaldo "Jacare" Souza is undefeated in four Strikeforce fights going back to December of 2009. He won the belt by defeating Tim Kennedy in an August 2010 bout to determine who would take Jake Shields' vacant title. Since then he's defended his belt once against Robbie Lawler at Strikeforce: Diaz vs Cyborg. 

Apparently this isn't an active enough schedule for Jacare:

I don’t know [when I’ll be back]. I get upset. I am an MMA professional, a guy who’s always ready to fight, I keep waiting approximately six months to fight. It sucks, I don’t like that. They’re thinking of July [for my return], but for me that’s a long time. I’m going to relax in training right now, I’m going to travel. Maybe I’ll fight in July again. I hope my new boss puts me to work more often.

Jacare isn't the only champion frustrated with the lack of fights inside the Strikeforce banner, Cris Cyborg has also gone on record to share her frustration as of late. While Jacare goes on to affirm that he believes Strikeforce fighters will remain at Strikeforce, and that he's a Strikeforce employee, he sure sounds like he would welcome some new management. Will the purchase of Strikeforce by Zuffa create more challengers to the inactive champions?