Hearing that star inside linebacker NaVorro Bowman might miss half the season because of his torn ACL was certainly interesting news Thursday.However, it shouldn't be shocking. San Francisco 49ers coach Jim Harbaugh said while he wouldn't count Bowman out for Week 1, midway through the season is more realistic. Harbaugh is simply being cautious and showing that Bowman will not be rushed back. It's the right approach.Bowman hasn't suffered a setback.