#1 - Sammy is a stud
#2 - the bills paid a heavy price to get him using 2 years worth of first round picks.
#3 - this is a text book example of competing philosophies of trading up (putting all your eggs in one basket for 1 player) vs trading down (picking up extra picks, spreading out the risk of injury over several players and usually lowering your total cap hit in the process compared to the 1 stud).
#4 - a 1st round pick can usually be flipped for a 2nd & 3rd rounder. so in sammy's case you could say he cost the bills two seconds and two thirds (4 players). in 2014, Sammy has a $5.0 mil/yr cap hit. Kouandro $1.2 mil and preston brown $0.75.
so Sammy cost $5 mil/yr while the total cap hit of two 2's & two 3's is $4 mil/yr