CLEVELAND -- The Browns' plans to upgrade FirstEnergy Stadium are moving down the field like a fast-moving touchdown drive.

The Cleveland Planning Commission OK'd the proposal Friday.

The action lets the Browns pull permits to start work on the two-phase project after the season ends.

The proposal calls for bigger deluxe scoreboards, a new sound system, more and bigger escalators and moving some upper level seats into the lower bowl.

Phase 2 would involve improvements to concession stands, club seats and suites.

So far it's a mystery how all this would be paid for.

The total price tag's an estimated $120 million.

The Browns say they'll pay a share and have a loan from the NFL.

Negotiations continue with Mayor Frank Jackson.

And the silence raises a lot of questions.

How will this affect a campaign to raise the sin tax? The issue's expected on the ballot next year.

The Cavs, Indians and Browns supposedly were strategizing with business leaders how to pitch the issue.

But the other teams were apparently blindsided by the Browns' announcement. It's unclear whether the FirstEnergy improvements equation even considers the sin tax.

And critics are reminding the public of the team's generous lease, stadium property tax exemption and clean sweep of naming rights revenue.

More details about the financing plan are expected in a matter of weeks.