Here's a question ( or two lol ) for posters bashing the OP ideal. What's the answer to getting more sacks or qb pressures in 4-3 / Tampa 2 scheme? We've not seen high level pass rush or pressure since 2012, a year BEFORE DeMarcus Ware was released ( last year under the 3-4 ). Not sure how many remember, but according to Jason Garrett, we fired Rob Ryan and brought in Monte Kiffin and Tampa 2 before the 2012 season for one reason ....... create more turnovers. Ware struggled his first and only year in the 4-3 and of course was released. Fast forward to 2014 playoff loss against the Packers ( one-legged Rogers ate defense alive ) and note Stephen Jones even said immediately after the loss, finding a pass rusher will be a top priority for 2015. Hell Jerry even admitted in an article earlier this year, finding an ELITE pass rusher is hard coz they're hard to draft ( outside top 10 picks ) and teams do not trade or release the good ones. As we all know -and mention by the OP- one main reason Parcell favored the 3-4 they are easier to draft. If you go back look at last pre-draft evaluations, most of the pass rush specialist were in the 250ish range ( exact range for Ware and Von Miller ). Without putting words in the OP mouth, I think the main point(s) he's trying to make is we are now in 2017, FOUR YEARS into the 4-3 /Tampa 2 and are no closer to having the answer than before we left the 3-4. .
Many posters say a move back ISN'T the answer and I tend to agree, somewhat but then what is? Trade? Pressing your luck drafting one at the bottom of earlier rounds? Remember any top 4-3 DE is coming off the board within the first 10 picks, a range we hope to be nowhere near. Free agency? ( highly unlikely to find an elite and if we do, I don't see Stephen spending $75-100M to sign one).
The point is many are dismissing even the thought what the OP is saying but it's a fact this defense has struggled to find consistent sacks and pressure since leaving the 3-4. Of course not saying it CAN'T be done. Just for whatever reason, coaches and FO have struggled to fix this unit.