Darvish's contract was front-loaded, so it would represent less than 20% of payroll in later years. It also includes an opt out clause, which reduces the potential long-term upside, but also potentially nullifies the riskiest years 3-6. Its no-trade restrictions are loosened in years 5-6 too, so potentially the team could swap it for a different asset near the end, spreading out the owed salary over more years. And any long-term deals for Buxton, etc. would be structured with the Darvish commitment in mind, with salaries plateauing through his year 6, and increasing after his deal is over. With 6 years to plan, the deal would have been no serious impediment to Twins efforts to lock up homegrown talent, should the need arise. It may have precluded a similar elite FA signing over the next few years, but the odds of multiple such opportunities being available to the Twins in a short time span are virtually zero anyway.