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September 29, 2025 · The Bloomfield Team

The First 90 Days: What a New Plant Manager Should Fix

A new plant manager walks into a 65-person contract machining operation. The predecessor left after 11 years. On-time delivery is at 78%. The quoting backlog is 15 days deep. Two experienced machinists gave notice last month. The owner says "fix it" and goes back to selling.

The temptation is to fix everything at once. That approach fails. Here is a 90-day sequence that builds credibility with the floor team while producing measurable results for ownership.

Days 1 through 14: Listen and Measure

Walk the floor. Every shift. Spend 30 minutes at every work center during the first two weeks. Ask the operators three questions: what slows you down, what information do you wish you had when you start a job, and what has been promised to you and not delivered.

Pull five reports from the ERP: on-time delivery by customer for the last 12 months, quoted-versus-actual cost variance on the last 100 jobs, scrap and rework by root cause, machine utilization by work center, and quoting turnaround time by month. These reports take a few hours to generate and they tell you where the operation actually stands versus where people think it stands.

Do not change anything yet. The floor team has seen new managers come in and rearrange everything in week one. That approach destroys trust before it builds results. The first two weeks are for collecting data and earning the right to make decisions. A deeper framework for this data assessment is available in our guide to shop floor metrics.

Days 15 through 30: Fix the Production Meeting

Every shop has a morning production meeting. In most shops, it is a status recital where the scheduler reads the board and everyone nods. That meeting needs to become a decision-making forum. Review the day's priorities, identify the top three risks to on-time delivery this week, assign ownership of each risk, and follow up the next morning.

The meeting should last 15 minutes. No chairs. No laptops. A whiteboard with three columns: scheduled today, at risk, and blocked. The shift lead updates the board before the meeting starts. The plant manager runs it with two questions: what needs to happen today to hit the delivery dates we promised, and who needs help.

This single change, executed consistently, typically moves OTD by 5 to 8 percentage points in the first month because it forces visibility into the schedule and creates accountability for the handoffs where jobs get delayed.

Days 15 through 30: Identify the Single Biggest Bottleneck

The utilization data from week one will show you which work center is the constraint. In most job shops, one machine or one cell runs at 85 to 95% utilization while others sit at 50 to 65%. Every minute of downtime on the bottleneck machine is a minute of lost throughput for the entire plant.

Focus improvement effort on that one constraint. Reduce setup times on that machine. Schedule preventive maintenance during off-shifts. Ensure raw material arrives staged and ready before the current job finishes. If the bottleneck is an operator rather than a machine, cross-train a second person on that cell immediately. The capacity hiding inside your existing equipment is almost always larger than people expect.

Days 30 through 60: Attack the Quoting Backlog

A 15-day quoting backlog means the shop is declining work or losing bids to competitors who respond faster. Reducing that backlog is a revenue problem dressed up as an operations problem.

Implement three changes. First, triage incoming RFQs by size and complexity within 4 hours of receipt. Simple repeat work gets quoted same-day. Complex new work gets a 48-hour target with a customer acknowledgment sent immediately. Second, create a standard quoting template that eliminates formatting decisions and ensures consistency. Third, give the estimator access to historical job data organized by part family rather than by job number, so comparable cost data is findable in minutes rather than hours.

These changes can compress quoting turnaround from 15 days to 3 to 5 days within 30 days of implementation. The revenue impact of faster quoting is the most compelling metric to present to ownership at the 60-day mark.

Days 60 through 90: Build the Systems That Sustain

The first 60 days produce quick wins. Days 60 through 90 are about building the systems that prevent regression. Three priorities.

First, implement weekly KPI tracking. OTD, quote turnaround, scrap rate, and machine utilization for the bottleneck cell. Post the numbers where the floor can see them. When metrics are visible, they improve. When they are invisible, they drift.

Second, document the knowledge your best people carry. Identify the three most critical roles in the operation and begin structured knowledge capture. Setup procedures, estimating guidelines, customer-specific requirements. This is the insurance policy against the next retirement or resignation.

Third, present the 90-day results to ownership with a 12-month roadmap. Show what changed, how you measured it, and what the next three priorities are. The plant manager who arrives with data, produces results in 90 days, and presents a plan for the next year earns the authority to execute that plan.

Ninety days is enough time to prove that the operation can improve. It is not enough time to fix everything. The discipline is choosing the right three problems in the right order, solving each one with data, and building systems that hold the gains while you move to the next set of problems.