Why? They have about 6-7 roster spots open that will include draft picks
Dak, Rush, Lance - 3
Rookie, Dowdle, Deuce, Luepke - 4
Lamb, Cook, Tolbert, Turpin, Brooks - 5
Ferguson, Schoonmaker, Fant/Hendersnot/Stephens JR. - We always keep 4
Smith, Steele, Chuma, Richards, Waletzko - 5
Martin, Bass, Ball - 3
Hoffman - 1
That is a solid 24-25 on offense
Micah, Tank, Williams, Golston -4
Osa, Mazi, Davis, Fehoko - 4
Kendricks, Overshown, Clark - 3
Diggs, Bland, Lewis, Scott, Goodwin - 5
Hooker, Izzy - 2
Wilson, Thomas, Bell - 3
Thats another 21
Anger, Aubrey, Seig - 3
So in total is already around 46-47 bodies. Your 1,2,3,5 are making the squad so that puts you around 50. They will likely sign 2-3 free agents when the draft ends so they dont count against the comp formula.
You also have a few guys like Cropper, Durden, Bostick, Wheat who could make the 53.
You may get 2-3 UDFA Tops