The Green Bay Packers chose to invest another day Friday after they drew a line in the financial sand and ended up losing wide receiver Greg Jennings and tight end Tom Crabtree in free agency. Sources familiar with negotiations said Jennings had an offer averaging about $8 million from the Packers before he took a five-year contract from the Minnesota Vikings that averaged about $9 million. He received a $10 million signing bonus and guarantees worth $18 million. At roughly the same time, Crabtree accepted a two-year, $1.6 million deal from the Tampa Bay Buccaneers when the Packers wouldn't budge off their one-year offer worth about $700,000. So the Packers entered the weekend a total of $18.719 million under their adjusted salary cap of $131.326 million without two players - a former Pro Bowler and a functional journeyman - at two of their deepest positions.