Transportation Cost Reduction Strategy

Help me develop a transportation cost reduction strategy. Current situation:

Annual transportation spend: [Total cost]
Spend breakdown: [By mode - truck, air, ocean, rail]
Shipment profile: [Average size, frequency, lanes]
Current carrier mix: [Number of carriers, contract vs. spot]
Service level requirements: [Transit time, on-time delivery %]
Technology used: [TMS, visibility tools]
Current cost per unit shipped: [If known]
Peak season impact: [Seasonal variations]

Please recommend:
1. Mode optimization opportunities
2. Carrier consolidation strategy
3. Contract negotiation tactics
4. Shipment consolidation approaches
5. Network optimization opportunities
6. Technology enablement recommendations
7. Projected savings and implementation timeline