Los Angeles Unified officials and school board members Tuesday proposed two key changes to the district's landmark Public School Choice reform effort, which some parents and community members fear could water down the ambitious plan.

The reform initiative, approved by the LAUSD board in 2009, allows outside groups to compete with LAUSD-based teams to run some of the district's lowest-performing campuses and new schools.

To date, some 55 LAUSD schools have gone through the competitive process, hailed by some as one of the most promising reform efforts ever undertaken by the district and sharply criticized by others as a give-away of public schools.

On Tuesday, district officials proposed altering the way that parents and students select their preferred bidder for a campus, after the school board eliminated a non-binding community vote criticized for being too open to