NFL teams routinely target players they know well during free agency.
The St. Louis Rams had an "in" with veteran linebacker Ben Leber, who reached agreement with the team Tuesday. Their linebackers coach, Paul Ferraro, was with the Vikings from 2006-08. Their defensive line coach, Brendan Daly, was also with Minnesota during those years.
Leber's addition calls into question veteran Na'il Diggs' status with the team. Diggs finished last season on injured reserve with a torn pectoral.
The Seattle Seahawks also had interest in Leber. They had ties to Leber as well; Seahawks offensive coordinator Darrell Bevell was with the Vikings previously. Leber's ties to Ferraro and Daly were obviously stronger. Both worked on the defensive side.