The University of Redlands sent out letters to 41 senior faculty members last week announcing the voluntary supplemental retirement program the Board of Trustees approved. The board agreed to the plan two weeks ago, said Executive Vice President Phil Doolittle. It comes as the university faces a $13 million budget deficit. The package sent out to the eligible faculty members explained what they would receive for agreeing to retire, either by July 1 of this year or July 1, 2011.