President Obama must recapture the magic that won him the White House in 2008. (Renegade98)

President Barack Obama's Democratic National Convention speech will attempt to re-assure Americans about the economy and job security.

But it's also a platform for him to protect his own job security as well. Here are some goals the president needs to key in on as he makes the case for four more years.

Vote Of Confidence

Obama needs to convince Americans that the country is indeed moving in the right direction under his watch.

It's debatable if an answer to the question of, "Are you better off than you were four years ago?" would work in the president's favor.

Republicans like to drive home the point that the unemployment rate has been hovering above 8 percent for 42 straight months. Fair or not, opponents can also chalk up the $16-trillion debt and plunging home prices as his doing.

Obama can't shrink those figures with a magic wand, but what he can do is persuade voters that the nation is heading in the wrong direction that he can steady the ship over the next four years--and giving himself an "incomplete" grade won't cut it.

Re-Energize His Supporters

It appears the honeymoon, along with the warm and fuzzy feelings from 2008 have vanished. Obama's election win four years ago can be attributed in part to voters age 18 to 29, a group the president won by 34 percent.

Obama will likely capture this demographic once again, but with unemployment hitting recent college graduates hard, it will take some convincing to get young voters to turn out in numbers similar to 2008. The message needs to ring a tone of hope with the August jobs report due out Friday.

Clearly Define His Agenda

The "change" that the president spoke of in 2008 has been tough to deliver due to Republican Congress that has been stubborn to work with. But sticking to the Thursday night theme of "Promises Kept," Obama needs to tout his efforts in bringing health care reform and ending the Iraq war. And with voters giving Mitt Romney a slight when it comes to handling the economy, Obama must outline a thorough economic strategy that will allow him to make inroads with those skeptics and prove that his plan is more beneficial for the working class.

Prove That He Can Still Deliver The Big Speech

The positive reception former President Clinton's Wednesday speech received, will make it a tough act for Obama to follow. Obama needs to display the charisma that propelled him to superstardom at the 2004 DNC. The president has a double-digit lead over Romney in the likeability department, and a trivial factor like that could sway a few votes in what will be a tightly-contested election.

Reach Staff Columnist Danny Lee here.