Here’s one blogger’s grades for the Rams after Sunday’s 42-6 loss to the Indianapolis Colts:

QUARTERBACK: The Rams trailed just 21-6 late in the third quarter when Marc Bulger’s pass for WR Keenan Burton on a deep out route was intercepted by CB Jacob Lacey, who jumped the route and raced 27 yards for a touchdown. The throw either had to be made earlier or with more zip on the ball. In the fourth period, Bulger threw into traffic near the end zone and again was picked off. He wound up 14 of 26 for 140 yards, no TDs and an abysmal passer rating of 37.3. Bulger was sacked three times and hit five other times. GRADE: D-

RUNNING BACKS: Overall, the Rams’ RBs averaged a solid 5.2 yards  per carry. Steven Jackson had his most productive outing of the season on the ground, rolling up 134 yards on 23 carries. Jackson caught one pass and dropped another. The Rams still haven’t scored a rushing TD this year. GRADE: B

RECEIVERS: The wideouts had 10 receptions among them, Danny Amendola leading the way with five for 39 yards. Keenan Burton had three catches for 28 yards, and Donnie Avery picked up 58 yards on just two grabs, including a 50-yard strike off a flea-flicker on the Rams’ first possession. WR Tim Carter dropped a pass on a slant pattern near the end zone that might’ve resulted in a TD. TEs Randy McMichael and Daniel Fells produced just three catches for 16 yards. GRADE: C

OFFENSIVE LINE: The Colts buzzed around Bulger much of the afternoon, registering three sacks and five hits. The three-man rotation at tackle was a head-scratcher, especially when RT Adam Goldberg was removed after he spearheaded one of the team’s best run-game sequences early in the third quarter. The run blocking wasn’t good early, but improved significantly in the second half. GRADE: C-

DEFENSIVE LINE: The Colts gashed the Rams for 156 rushing yards, averaging 6.0 yards per run. Manning was touched only once all day, when DE Leonard Little nearly got to him for a sack. Generally, Manning had all the time he wanted in the pocket. Very little production from this unit. GRADE: D-

LINEBACKERS: The Rams started in their “dime” package — six DBs, four DLs and one LB — and stuck with it most of the way. So, SLB Larry Grant and WLB Paris Lenon saw only limited action. MLB James Laurinaitis wasn’t particularly effective. He was credited with four tackles, well below his season average of nearly 10 per game. GRADE: D+

SECONDARY: When Manning has time, as he did Sunday, no secondary is going to look good trying to quell a passing game that includes TE Dallas Clark and WR Reggie Wayne. Still, rookie CB Bradley Fletcher put together his best game before leaving with a knee injury in the fourth quarter. S Craig Dahl, the dime back who lined up as a LB most of the time, was effective. The rest of the DBs did little to distinguish themselves, however, as Manning hooked up with eight different targets. GRADE: D+

SPECIAL TEAMS: Josh Brown was good on both his FB tries, from 30 and 45 yards. Donnie Jones averaged 43.2 yards (net 41.0) on five punts — not his best day, but not bad, either. Danny Amendola’s returns were pretty good, averging 25.1 yards on kicks and 8.0 on punts. The Rams’ coverage was good on punts, medicore on kickoffs. GRADE: C+

COACHING: An offensive line depends on continuity, and the three-man tackle rotation was ill-advised. Seemed like a preseason  move. OC Pat Shurmur opened up his bag on tricks with a first-quarter flea-flicker that picked up 50 yards. After that, though, his play-calling didn’t include much creativity. The decision to deploy six DBs was logical, although it hindered the Rams’ chances of getting pressure on Manning. DC Ken Flajole dialed up a fair number of blitzes, but they didn’t produce much. GRADE: C-