Cut baguette at a 45° angle into eight slices (1/4 in. thick). Set slices on a rack on a 10- by 15-inch baking sheet. In a small bowl, mix 2 tablespoons of the olive oil with 1 teaspoon minced garlic. Brush garlic oil lightly over tops of slices. Bake in a 400° oven until golden brown, 8 to 10 minutes.
Meanwhile, finely chop 6 anchovies. Put in garlic-oil bowl and add remaining 1/4 cup olive oil, 2 teaspoons garlic, the lemon juice, and mayonnaise. Whisk to blend. Add salt and pepper to taste.
In a bowl, mix lettuce, dressing, and 3 tablespoons cheese. Spoon salad into eight widemouthed glasses (16 oz.). Sprinkle with remaining cheese; garnish with remaining anchovies. Slide a toasted baguette slice into each glass.