(See below for update. Basically I changed how I estimated playing time)
Quite possibly the most intriguing division this year will be the AL West. The Angels have long dominated the division, but the Mariners made a lot of upgrades in the offseason, managing to acquire Cliff Lee and Milton Bradley for almost nothing, the Texas Rangers have a surge of young talent reaching the majors, and it's tough to count out the A's.
I'm going to take a look at these teams a little more closely, busting out BtB's WAR calculator from last year to examine things.
First, here's a rundown of what I'm doing: for the players wOBAs and FIPs, I'm taking the average of 5 projection systems that largely have data on all of the teams: CHONE, Bill James, PECOTA, Marcel, and the Fans projections at fangraphs. For playing time, I'm just using the playing time estimates over at BP's depth charts. I should probably change this to the fan projections playing times, but we don't have full data on enough players to do that. The defensive numbers come from Jeff Zimmerman's UZR projections on Beyond the Boxscore, and I ignored baserunning, because I'm lazy and it doesn't have a huge impact anyway.
So without further ado, here are the Mariners. I apologize for the strange formatting - bloggers crappy rich text editor is converting all the newlines in the table html into line breaks. Super annoying.
| Hitter | Pos | PA | wOBA | Hit | Pos | Fld | Rep | WAR | FA $ | WAR |
| Josh Bard | CA | 324 | .299 | -2.16 | 1.25 | 0 | 2.50 | 1.59 | $3.7 | 0.7 |
| Rob Johnson | CA | 312 | .292 | -2.62 | 1.25 | 0 | 2.50 | 1.13 | $2.7 | 0.5 |
| Casey Kotchman | 1B | 496 | .337 | 0.12 | -1.25 | 0.50 | 2.50 | 1.87 | $6.4 | 1.3 |
| Ryan Garko | 1B | 211 | .343 | 0.23 | -1.25 | -0.30 | 2.50 | 1.48 | $2.3 | 0.4 |
| Jose Lopez | 2B | 641 | .330 | -0.33 | 0.25 | -0.10 | 2.50 | 2.32 | $10.0 | 2.1 |
| Jack Hannahan | 2B | 72 | .309 | -1.57 | 0.25 | 0.20 | 2.50 | 1.38 | $1.0 | 0.1 |
| Jack Wilson | SS | 513 | .303 | -1.94 | 0.75 | 0.60 | 2.50 | 1.91 | $6.7 | 1.4 |
| Jack Hannahan | SS | 136 | .309 | -1.57 | 0.75 | 0.10 | 2.50 | 1.78 | $2.0 | 0.3 |
| Chone Figgins | 3B | 667 | .341 | 0.38 | 0.25 | 0.60 | 2.50 | 3.73 | $16.4 | 3.6 |
| Jack Hannahan | 3B | 80 | .309 | -1.57 | 0.25 | 0.90 | 2.50 | 2.08 | $1.5 | 0.2 |
| Michael Saunders | LF | 423 | .318 | -1.02 | -0.75 | 0.50 | 2.50 | 1.23 | $3.7 | 0.7 |
| Milton Bradley | LF | 125 | .369 | 2.09 | -0.75 | -0.40 | 2.50 | 3.44 | $3.2 | 0.6 |
| Junior | LF | 68 | .326 | -0.57 | -0.75 | -0.30 | 2.50 | 0.88 | $0.8 | 0.1 |
| Franklin Guitierrez | CF | 660 | .337 | 0.10 | 0.25 | 1.60 | 2.50 | 4.45 | $19.3 | 4.2 |
| Langerhans | CF | 70 | .319 | -0.95 | 0.25 | -0.20 | 2.50 | 1.60 | $1.1 | 0.2 |
| Suzuki Ichiro | RF | 710 | .349 | 0.85 | -0.75 | 0.70 | 2.50 | 3.30 | $15.4 | 3.3 |
| Langerhans | RF | 78 | .319 | -0.95 | 0.75 | 0.20 | 2.50 | 1.00 | $0.9 | 0.1 |
| Milton Bradley | DH | 422 | .369 | 2.09 | -2.00 | 0 | 2.50 | 2.59 | $7.4 | 1.6 |
| Junior | DH | 148 | .326 | -0.57 | -2.00 | 0 | 2.50 | -0.07 | $0.3 | 0.0 |
| Garko | DH | 88 | .343 | 0.49 | -2.00 | 0 | 2.50 | 0.99 | $1.0 | 0.1 |
| Team | 6398 | .331 | -0.25 | 0.00 | -0.24 | 0.43 | 2.44 | $100.7 | 22.3 |
| Pitcher | S/R | IP | FIP | LEV | FA $ | WAR |
| Felix Hernandez | S | 220 | 3.45 | 1.0 | $25.6 | 5.6 |
| Cliff Lee | S | 219 | 3.55 | 1.0 | $24.2 | 5.3 |
| Ian Snell | S | 163 | 4.54 | 1.0 | $9.0 | 1.9 |
| Ryan Rowland-Smith | S | 164 | 4.33 | 1.0 | $10.8 | 2.3 |
| Erik Bedard | S | 84 | 3.76 | 1.0 | $8.4 | 1.8 |
| Doug Fister | S | 93 | 4.6 | 1.0 | $5.0 | 1.0 |
| Aardsma | R | 60 | 3.83 | 1.8 | $5.4 | 1.1 |
| Lowe | R | 60 | 4.05 | 1.3 | $3.0 | 0.6 |
| White | R | 60 | 4.61 | 1.0 | $0.6 | 0.1 |
| League | R | 60 | 4.30 | 0.9 | $1.5 | 0.2 |
| Kelley | R | 55 | 4.18 | 0.8 | $1.6 | 0.3 |
| Vargas | R | 60 | 4.78 | 0.7 | $0.2 | 0.0 |
| Olson | R | 57 | 5.08 | 0.6 | -$0.2 | -0.1 |
| Starters | 802 | 4.01 | $66.6 | 14.7 | ||
| Relievers | 412 | 4.40 | $9.8 | 2.1 | Total | 1214 | 4.14 | $76.0 | 16.8 |
| Group | WAA | WAR |
| Hit | -2.3 | |
| BR | 0.0 | |
| Field | 3.7 | Hitters | 21.7 |
| Pitchers | 20.0 | |
| Total WAR | 41.7 | |
| Total FA $ | $188.6 | |
| Win Talent | 85.2 |
So in summary - the Mariners are an incredibly good fielding team (led by Franklin Guitierrez, of course), but they're not very good hitters, and their rotation behind twin aces Hernandez and Lee are not very good.
UPDATE: I decided to change a few things with regards to playing time, especially the pitching. Garko and Bedard have signed with the team since I wrote this so I included them too. I used the fan's playing time estimates from fangraphs instead. Tango has shown that the fans estimates tend to be too high, so you should temper these a little bit. But for the most part they were pretty close to what PECOTA had.I only did this for the regulars position-player wise, and divvied up bench ABs based on pecota and my own adjustments. For the 5th pitcher slot, I'm assuming that Bedard will share it with someone else. Since Fister seems to be the leading candidate to get these starts over all the others on the Mariners depth chart (Vargas, Olson, French) I went with him. Anything they get from Bedard should be pretty valuable.
This new WAR estimate is 2 wins and change higher than the old one, and the main difference is pitching. Rowland-Smith was not predicted to throw as many innings in PECOTA, and replacing Yusmeiro Petit (who no one but pecota has as the 5th starter) with Bedard/Fister was a big upgrade too.