Table:
text: 2009 Detroit Lions season
Personnel
2009 NFL Draft
Draft_order_Round Draft_order_Choice Player Position_ Height Weight College_
1 1 Matthew Stafford QB 6 ft 2 in (1.88 m) 223 lb (101 kg) Georgia
1 20 * Brandon Pettigrew TE 6 ft 5 in (1.96 m) 263 lb (119 kg) Oklahoma State
2 33 Louis Delmas S 5 ft 11 in (1.80 m) 202 lb (92 kg) Western Michigan
3 76** DeAndre Levy OLB 6 ft 2 in (1.88 m) 236 lb (107 kg) Wisconsin
3 82* Derrick Williams WR 5 ft 11 in (1.80 m) 197 lb (89 kg) Penn State

text: 2009 Detroit Lions season
Personnel
2009 NFL Draft
Draft_order_Round Draft_order_Choice Player Position_ Height Weight College_
4 115*** Sammie Lee Hill DT 6 ft 4 in (1.93 m) 329 lb (149 kg) Stillman
6 192* Aaron Brown RB 6 ft 1 in (1.85 m) 196 lb (89 kg) Texas Christian
7 228 **** Lydon Murtha OT 6 ft 7 in (2.01 m) 315 lb (143 kg) Nebraska
7 235 ***** Zack Follett OLB 6 ft 1 in (1.85 m) 238 lb (108 kg) California
7 255 Dan Gronkowski TE 6 ft 6 in (1.98 m) 255 lb (116 kg) Maryland

Question: Who was the Detroit Lions' top draft pick of the 2009 season?