I advance the proposition that the days of the hulking run stuffing MLB/SILB are over in the modern NFL. Pass catching RBs and TEs have made them an anachronism. In the 4-3, the pass rush comes from the defensive line, the DEs and the 3 technique DT, and perhaps a OLB But in the 3-4 the pass rush comes from the OLBs, and has to include an ILB as well. In the 3-4 the ILBs, both of them need to cover the underneath of the crossing RBs and TEs and WRs. So a more agile and multi-functional guy in all phases is needed at the modern MLB and especially the SILB position. Okay take your shots guys. do you think this is so? If not why? What are the implications?