Ihedigbo went from the Jets to the Patriots to the Ravens. Not sure how that could be taken as evidence of any kind of Ravens-to-Jets pipeline. That aside, you can find similar connections with just about any team. To suggest that there's any kind of a pipeline between two organizations I'd personally require a lot more evidence, starting with front office crossover. Like I think you could make a reasonable claim that there's some kind of Pats-to-Titans pipeline based on the Titans desire to import Patriots players, and that's based first and foremost on Jon Robinson, and takes into account Mike Vrabel being the coach, plus 10% of their active roster being former Patriots (Dion, Logan Ryan, Butler, Kline, Kilgo). And 4 of the 5 were imported directly from New England.