I like speed even at the 4 and 5 in my d1 press.
I typically have ath 90+ d 90+ and speed 90+ for my 1 and two. Depending on the team, my 3 as well... But it doesn't seem to be as impt at the three.
But I have noticed every big I've had who has been below 50 on speed has underperformed. They can be 99 ath. Def, reb, and lp, and they still underperform compared to 90/50 ath/ speed guys.
I do think speed matters at every position in the press. More at the 1,2,3 for sure
I don't like to take guys under 59 speed anywhere.