Ann Arbor officials say they're open to considering implementation of a new paid on-call firefighting system as an option for cutting costs at the Ann Arbor Fire Department. The idea emerged today during an all-day city budget retreat as city officials brainstormed ways to address future shortfalls in the city's budget. The city's general fund budget currently totals $81.45 million. The fire department, with 89 full-time employees budgeted this year, accounts for about $13.8 million of that. The city's administration revealed a new forecast showing a $2.4 million shortfall for fiscal year 2011-12. Read the stories here and here.