Shawntae Spencer will be allowed to seek a trade

Cornerback Shawntae Spencer has spent eight seasons in San Francisco, primarily as a starter. The team thought enough of him in 2006 to hand him a six-year contract. Spencer’s tenure with the team is about up. Matt Maiocco of CSNBayArea.com reports the 49ers are in the process of allowing Spencer seek a trade. He’s due…