In terms of the Bellichick's call....in terms of winning percentage it's probably the better option. 
 
I'm not sure how you put numbers to it...but say they convert the 4th down 50% of time.  50% of the time they run the clock out and win for sure.  The other 50% they leave 2 minutes and Indy the ball at the 30.  Say Indy will score a TD 65% of the time. 
 
The chances NE wins = 0.5+0.5*(1-0.65) = 0.675 
 
If they just punt the ball Indy will get the ball on avg at their own 30?  Does Indy score a touchdown greater than one out of every three attempts with two minutes to go in that situation. 
 
These are just numbers I made up...maybe NE makes a first down more often...then it makes his call even better.
		 
		
		
		
		
		
		
		
		
			
			
			
			
			
			
			
			
			
			
				
			
			
			
		 
	
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