Arrange chicken in a bowl and season with salt and pepper. Set aside. In a large pot, cook chopped bacon over medium heat for about 7 - 8 minutes or until bacon is cooked. Using a slotted spoon, transfer bacon to a plate lined with paper towel. Leave grease in pot.
Add mushrooms, onion, celery, garlic and thyme to pot. Cook, stirring occasionally for about 5 minutes. Increase heat to high and add 1 cup broth and soy sauce. Make sure to scrape up any browned bits on the bottom of pot.
Bring ingredients to a boil. Stir occasionally while cooking until liquid evaporates and vegetables begin to sizzle This will take about 15 minutes. Add butter and melt.
Sprinkle flour all over vegetables and stir until coated. Slowly whisk in remaining broth until consistency is smooth. Add bacon, potatoes, and carrots. Stir until blended. Cook, uncovered for about 30 minutes, stirring occasionally.
Turn stove up to high. Using a wooden spoon, scrape down sides while stirring. Add chicken, and bring to a simmer. Continue to cook, stirring occasionally for about 45 minutes more.