Could mean the Philly philosophy of building through the draft and developing your own players.Does it really? Philly philosophy drafted a WR in the top 10 & also traded a 1st for a WR in very recent memory.
Hell, Mailata, Vaitai, & Peters have been their last 3 mid-to-long term LTs & none of those dudes were drafted in the first round.
Lane Johnson was drafted in the first round over a decade ago.
Of course, that could apply to a wr as well