Upon Further Review: Patriots Week 13

FOXBOROUGH, Mass. -- A review of four hot issues following the New England Patriots' 34-31 win over the Houston Texans:

Run defense springs leaks again: The Patriots are struggling to stop the run, as season-ending injuries to defensive tackles Vince Wilfork and Tommy Kelly, as well as linebacker Jerod Mayo, have cut deep. The struggles against the Texans seemed more fundamental, such as getting off blocks and tackling. The Texans rushed for four touchdowns in the game after entering the day with two rushing touchdowns on the season.

Ridley's uncertain future as the lead back: Lead running back Stevan Ridley was a healthy scratch after losing his third fumble in three games Nov. 24 against the Broncos. If Ridley doesn't dress for a game against the two-win Texans, it raises questions as to what type of role he might have down the stretch and in the playoffs. It seems fair to say that his time as the Patriots' lead back has officially reached a crossroads. Shane Vereen took the majority of running back snaps (41 of 70) against the Texans, playing in more traditional sets as he is now positioned to be the team's top option.

Banged-up receivers: Rookie receiver Aaron Dobson was inactive with a foot injury and then his replacement, Kenbrell Thompkins, left the game in the second quarter with a hip injury, and after attempting to play through it, he left the game for good after playing just 15 snaps. That thinned depth at receiver, leaving Julian Edelman and Danny Amendola as the top options, followed by rookie Josh Boyce and special teams captain Matthew Slater. The shortage at the position limits options in terms of personnel groupings and could be something to address if it's clear that Dobson and Thompkins will miss more time.

Edelman positioned for a lucrative payday: Edelman had a big day (nine catches, 101 yards) and upped his season total to 70 receptions, which earns him the maximum incentive in his contract of $250,000. There's good news and bad news for the Patriots in this area. The good news is that Edelman has become a key member of the passing attack, with Tom Brady joking that his nickname for him is "Minitron." The bad news? Edelman is scheduled for unrestricted free agency after the season, and the more he produces, the tougher it could be for the Patriots to retain him.