At some point during the high school days, in between the cut classes and swirlies distributed to band members, we learned that business thrives on competition (courtesy of Adam Smith).
It is clear professional wrestling saw its heyday during the late '90s when WCW nearly bankrupted the WWF/WWE in the time period known as the “Monday Night Wars”. At present day, the WWE continues to push a stale product at the front-line in John Cena, and refuses to shake things up (as their motivation to do so is limited).
TNA's window to strike and catch up to the WWE is closing upon the heels of WrestleMania.
TNA is currently losing money, so they clearly need to shake things up. The short term loss trade-off for an increase in fan base would serve dividends toward their long-term success, and ultimately competing on the same level with the WWE.
I feel these 5 changes would help TNA reach this goal.